Today in History

[Duke of Buckingham]

April 7th

451 – Attila the Hun sacks the town of Metz and attacks other cities in Gaul.
529 – First draft of the Corpus Juris Civilis (a fundamental work in jurisprudence) is issued by Eastern Roman Emperor Justinian I.
1348 – Charles University is founded in Prague.
1521 – Ferdinand Magellan arrives at Cebu.
1541 – Francis Xavier leaves Lisbon on a mission to the Portuguese East Indies.
1724 – Premiere performance of Johann Sebastian Bach's St John Passion BWV 245 at St. Nicholas Church, Leipzig.
1767 – End of Burmese–Siamese War (1765–1767)
1776 – Captain John Barry and the USS Lexington captures the Edward.
1788 – American Pioneers to the Northwest Territory arrive at the confluence of the Ohio and Muskingum rivers, establishing Marietta, Ohio, as the first permanent American settlement of the new United States in the Northwest Territory, and opening the westward expansion of the new country.
1798 – The Mississippi Territory is organized from disputed territory claimed by both the United States and Spain. It is expanded in 1804 and again in 1812.
1805 – Lewis and Clark Expedition: The Corps of Discovery breaks camp among the Mandan tribe and resumes its journey West along the Missouri River.
1827 – John Walker, an English chemist, sells the first friction match that he had invented the previous year.
1829 – Joseph Smith, Jr., founder of the Latter Day Saint movement, commences translation of the Book of Mormon, with Oliver Cowdery as his scribe.
1831 – D. Pedro I, Emperor of Brazil, resigns. He goes to his native Portugal to become King D. Pedro IV.
1862 – American Civil War: Battle of Shiloh ends – the Union Army under General Ulysses S. Grant defeats the Confederates near Shiloh, Tennessee.
1868 – Thomas D'Arcy McGee, one of the Canadian Fathers of Confederation is assassinated by the Irish, in one of the few Canadian political assassinations, and the only one of a federal politician.
1890 – Completion of the first Lake Biwa Canal.
1906 – Mount Vesuvius erupts and devastates Naples.
1906 – The Algeciras Conference gives France and Spain control over Morocco.
1908 – H. H. Asquith of the Liberal Party takes office as Prime Minister of the United Kingdom, succeeding Sir Henry Campbell-Bannerman
1922 – Teapot Dome scandal: United States Secretary of the Interior leases Teapot Dome petroleum reserves in Wyoming.
1927 – First distance public television broadcast (from Washington, D.C., to New York City, displaying the image of Commerce Secretary Herbert Hoover).
1933 – Prohibition in the United States is repealed for beer of no more than 3.2% alcohol by weight, eight months before the ratification of the XXI amendment.
1939 – World War II: Italy invades Albania.
1940 – Booker T. Washington becomes the first African American to be depicted on a United States postage stamp.
1943 – Holocaust: In Terebovlia, Ukraine, Germans order 1,100 Jews to undress to their underwear and march through the city of Terebovlia to the nearby village of Plebanivka where they are shot dead and buried in ditches.
1943 – Ioannis Rallis becomes collaborationist Prime Minister of Greece during the Axis Occupation.
1945 – World War II: The Japanese battleship Yamato, the largest battleship ever constructed, is sunk by American planes 200 miles north of Okinawa while en route to a suicide mission in Operation Ten-Go.
1945 – World War II: Visoko is liberated by the 7th, 9th, and 17th Krajina brigades from the Tenth division of Yugoslav Partisan forces.
1946 – Syria's independence from France is officially recognized.
1948 – The World Health Organization is established by the United Nations.
1948 – A Buddhist monastery burns in Shanghai, China, leaving twenty monks dead.
1954 – President Dwight D. Eisenhower gives his "domino theory" speech during a news conference.
1955 – Winston Churchill resigns as Prime Minister of the United Kingdom amid indications of failing health.
1956 – Spain relinquishes its protectorate in Morocco.
1964 – IBM announces the System/360.
1967 – Film critic Roger Ebert published his very first film review in the Chicago Sun-Times.
1969 – The Internet's symbolic birth date: publication of RFC 1.
1971 – President Richard Nixon announces his decision to increase the rate of American troop withdrawals from Vietnam.
1976 – Former British Cabinet Minister John Stonehouse resigns from the Labour Party.
1977 – German Federal prosecutor Siegfried Buback and his driver are shot by two Red Army Faction members while waiting at a red light.
1978 – Development of the neutron bomb is canceled by President Jimmy Carter.
1983 – During STS-6, astronauts Story Musgrave and Don Peterson perform the first space shuttle spacewalk.
1985 – Soviet leader Mikhail Gorbachev declares a moratorium on the deployment of middle-range missiles in Europe.
1989 – Soviet submarine Komsomolets sinks in the Barents Sea off the coast of Norway killing 42 sailors.
1990 – Iran Contra Affair: John Poindexter is found guilty of five charges for his part in the scandal (the conviction is later reversed on appeal).
1990 – A fire breaks out on the passenger ferry M/S Scandinavian Star, killing 158 people.
1992 – Republika Srpska announces its independence.
1994 – Rwandan Genocide: Massacres of Tutsis begin in Kigali, Rwanda.
1994 – Auburn Calloway attempts to hijack FedEx Express Flight 705 and crash it to insure his family with his life insurance policy. The crew subdues him and lands the aircraft safely.
1995 – First Chechen War: Russian paramilitary troops begin a massacre of civilians in Samashki, Chechnya.
1999 – The World Trade Organization rules in favor of the United States in its long-running trade dispute with the European Union over bananas.
2001 – Mars Odyssey is launched.
2003 – U.S. troops capture Baghdad; Saddam Hussein's regime falls two days later.
2009 – Former Peruvian President Alberto Fujimori is sentenced to 25 years in prison for ordering killings and kidnappings by security forces.
2009 – Mass protests begin across Moldova under the belief that results from the parliamentary election are fraudulent.


Request for Comments

The inception of the RFC format occurred in 1969 as part of the seminal ARPANET project. Today, it is the official publication channel for the Internet Engineering Task Force (IETF), the Internet Architecture Board (IAB), and — to some extent — the global community of computer network researchers in general.

The authors of the first RFCs typewrote their work and circulated hard copies among the ARPA researchers. Unlike the modern RFCs, many of the early RFCs were actual requests for comments, and were titled as such to avoid sounding too declarative and encourage discussion. The RFC leaves questions open and is written in a less formal style. This less formal style is now typical of Internet Draft documents, the precursor step before being approved as an RFC.

In December 1969, researchers began distributing new RFCs via the newly operational ARPANET. RFC 1, entitled "Host Software", was written by Steve Crocker of the University of California, Los Angeles (UCLA), and published on April 7, 1969. Although written by Steve Crocker, the RFC emerged from an early working group discussion between Steve Crocker, Steve Carr and Jeff Rulifson.


2001 Mars Odyssey

2001 Mars Odyssey is a robotic spacecraft orbiting the planet Mars. The project was developed by NASA, and contracted out to Lockheed Martin, with an expected cost for the entire mission of US$297 million. Its mission is to use spectrometers and electronic imagers to detect evidence of past or present water and volcanic activity on Mars. It is hoped that the data Odyssey obtains will help answer the question of whether life has ever existed on Mars. It also acts as a relay for communications between the Mars Exploration Rovers, Mars Science Laboratory, and the Phoenix lander to Earth. The mission was named as a tribute to Arthur C. Clarke, evoking the name of 2001: A Space Odyssey.

Odyssey was launched April 7, 2001 on a Delta II rocket from Cape Canaveral Air Force Station, and reached Mars orbit on October 24, 2001, at 2:30 a.m. UTC (October 23, 7:30 p.m. PDT, 10:30 p.m. EDT). The spacecraft's main engine fired in order to brake the spacecraft's speed, which allowed it to be captured into orbit around Mars. Odyssey used a technique called "aerobraking" that gradually brought the spacecraft closer to Mars with each orbit. By using the atmosphere of Mars to slow down the spacecraft in its orbit, rather than firing its engine or thrusters, Odyssey was able to save more than 200 kilograms (440 lb) of propellant. Aerobraking ended in January, and Odyssey began its science mapping mission on February 19, 2002.

By December 15, 2010 it broke the record for longest serving spacecraft at Mars, with 3,340 days of operation, claiming the title from NASA's Mars Global Surveyor. It currently holds the record for the longest-surviving continually active spacecraft in orbit around a planet other than Earth at 11 years, 5 months, and 13 days.

[Duke of Buckingham]

April 8

217 – Roman Emperor Caracalla is assassinated (and succeeded) by his Praetorian Guard prefect, Marcus Opellius Macrinus.
876 – The Battle of Dayr al-'Aqul saves Baghdad from the Saffarids.
1093 – The new Winchester Cathedral is dedicated by Walkelin.
1139 – Roger II of Sicily is excommunicated.
1149 – Pope Eugene III takes refuge in the castle of Ptolemy II of Tusculum.
1271 – In Syria, sultan Baybars conquers the Krak of Chevaliers.
1730 – Shearith Israel, the first synagogue in New York City, is dedicated.
1740 – War of Jenkin's Ear: Three British ships capture the Spanish third-rate Princesa.
1808 – The Roman Catholic Diocese of Baltimore is promoted to an archdiocese, with the founding of the dioceses of New York, Philadelphia, Boston, and Bardstown (now Louisville) by Pope Pius VII.
1820 – The Venus de Milo is discovered on the Aegean island of Melos.
1832 – Black Hawk War: Around three-hundred United States 6th Infantry troops leave St. Louis, Missouri to fight the Sauk Native Americans.
1864 – American Civil War: Battle of Mansfield – Union forces are thwarted by the Confederate army at Mansfield, Louisiana.
1866 – Italy and Prussia ally against the Austrian Empire.
1886 – William Ewart Gladstone introduces the first Irish Home Rule Bill into the British House of Commons.
1893 – The first recorded college basketball game occurs at Geneva College in Beaver Falls, Pennsylvania.
1895 – In Pollock v. Farmers' Loan & Trust Co. the Supreme Court of the United States declares unapportioned income tax to be unconstitutional.
1904 – The French Third Republic and the United Kingdom of Great Britain and Ireland sign the Entente cordiale.
1904 – British mystic Aleister Crowley transcribes the first chapter of The Book of the Law.
1904 – Longacre Square in Midtown Manhattan is renamed Times Square after The New York Times.
1906 – Auguste Deter, the first person to be diagnosed with Alzheimer's disease, dies.
1908 – Harvard University votes to establish the Harvard Business School.
1911 – Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
1913 – The 17th Amendment to the United States Constitution, requiring direct election of Senators, becomes law.
1916 – In Corona, California, race car driver Bob Burman crashes, killing three, and badly injuring five, spectators.
1918 – World War I: Actors Douglas Fairbanks and Charlie Chaplin sell war bonds on the streets of New York City's financial district.
1929 – Indian Independence Movement: At the Delhi Central Assembly, Bhagat Singh and Batukeshwar Dutt throw handouts and bombs to court arrest.
1935 – The Works Progress Administration is formed when the Emergency Relief Appropriation Act of 1935 becomes law.
1942 – World War II: Siege of Leningrad – Soviet forces open a much-needed railway link to Leningrad.
1942 – World War II: The Japanese take Bataan in the Philippines.
1943 – U.S. President Franklin D. Roosevelt, in an attempt to check inflation, freezes wages and prices, prohibits workers from changing jobs unless the war effort would be aided thereby, and bars rate increases by common carriers and public utilities.
1945 – World War II: After an air raid accidentally destroys a train carrying about 4,000 Nazi concentration camp internees in Prussian Hanover, the survivors are massacred by Nazis.
1946 – Électricité de France, the world's largest utility company, is formed as a result of the nationalisation of a number of electricity producers, transporters and distributors.
1950 – India and Pakistan sign the Liaquat-Nehru Pact.
1952 – U.S. President Harry Truman calls for the seizure of all domestic steel mills to prevent a nationwide strike.
1953 – Mau Mau leader Jomo Kenyatta is convicted by Kenya's British rulers.
1954 – A Royal Canadian Air Force Canadair Harvard collided with a Trans-Canada Airlines Canadair North Star over Moose Jaw, Saskatchewan, killing 37 people.
1954 – South African Airways Flight 201 A de Havilland DH.106 Comet 1 crashes into the sea during night killing 21 people.
1959 – A team of computer manufacturers, users, and university people led by Grace Hopper meets to discuss the creation of a new programming language that would be called COBOL.
1959 – The Organization of American States drafts an agreement to create the Inter-American Development Bank.
1960 – The Netherlands and West Germany sign an agreement to negotiate the return of German land annexed by the Dutch in return for 280 million German marks as Wiedergutmachung.
1961 – A large explosion on board the MV Dara in the Persian Gulf kills 238.
1968 – BOAC Flight 712 catches fire shortly after take off. As a result of her actions in the accident, Barbara Jane Harrison is awarded a posthumous George Cross, the only GC awarded to a woman in peacetime.
1970 – Bahr el-Baqar incident: Israeli bombers strike an Egyptian school. 46 children are killed.
1974 – At Atlanta-Fulton County Stadium, Hank Aaron hits his 715th career home run to surpass Babe Ruth's 39-year-old record.
1975 – Frank Robinson manages the Cleveland Indians in his first game as major league baseball's first African American manager.
1987 – Los Angeles Dodgers executive Al Campanis resigns amid controversy over racially charged remarks he had made while on Nightline.
1989 – Ashland, Kentucky beautiful Kaitlyn Braden is born as the cutest person ever. What the balls is this bullcrap?
1992 – Retired tennis great Arthur Ashe announces that he has AIDS, acquired from blood transfusions during one of his two heart surgeries.
1993 – The Republic of Macedonia joins the United Nations.
1999 – Haryana Gana Parishad, a political party in the Indian state of Haryana, merges with the Indian National Congress.
2004 – Darfur conflict: The Humanitarian Ceasefire Agreement is signed by the Sudanese government and two rebel groups.
2005 – Over four million people attend the funeral of Pope John Paul II.
2006 – Shedden massacre: The bodies of eight men, all shot to death, are found in a field in Ontario, Canada. The murders are soon linked to the Bandidos motorcycle gang.
2008 – The construction of the world's first building to integrate wind turbines is completed in Bahrain.


COBOL
COBOL (pron.: /ˈkoʊbɒl/) is one of the oldest programming languages, primarily designed by Grace Hopper. Its name is an acronym for COmmon Business-Oriented Language, defining its primary domain in business, finance, and administrative systems for companies and governments.

The COBOL 2002 standard includes support for object-oriented programming and other modern language features.

The COBOL specification was created by a committee of researchers from private industry, universities, and government during the second half of 1959. The specifications were to a great extent inspired by the FLOW-MATIC language invented by Grace Hopper, commonly referred to as "the mother of the COBOL language." The IBM COMTRAN language invented by Bob Bemer was also drawn upon, but the FACT language specification from Honeywell was not distributed to committee members until late in the process and had relatively little impact. FLOW-MATIC's status as the only language of the bunch to have actually been implemented made it particularly attractive to the committee.


Bahr El-Baqar primary school bombing

The Bahr el-Baqar primary school bombing occurred on 8 April 1970, during the War of Attrition. The Israeli Air Force carried out an air raid on the Egyptian village of Bahr el-Baqar, in the eastern province of Sharqiyya. The raid resulted in the destruction of a primary school that was in use during the attack, killing 46 children. Israel was under the impression that the school was an Egyptian military installation.

Israel claims that it had thought the school was an Egyptian military installation. The attack was carried out by Israeli Air Force F4 Phantom II fighter bombers, at 9:20 am on Wednesday April 8. Five bombs and 2 air-to-ground missiles struck the single-floor school, which consisted of 3 classrooms.

Of the 130 school children who attended the school, 46 were killed and over 50 wounded. The school itself was completely demolished.


Bahrain World Trade Center

The two towers are linked via three skybridges, each holding a 225kW wind turbine, totalling to 675kW of wind power production. Each of these turbines measure 29 m (95 ft) in diameter, and is aligned north, which is the direction from which air from the Persian Gulf blows in. The sail-shaped buildings on either side are designed to funnel wind through the gap to provide accelerated wind passing through the turbines. This was confirmed by wind tunnel tests, which showed that the buildings create an S-shaped flow, ensuring that any wind coming within a 45° angle to either side of the central axis will create a wind stream that remains perpendicular to the turbines. This significantly increases their potential to generate electricity.

The wind turbines are expected to provide 11% to 15% of the towers' total power consumption, or approximately 1.1 to 1.3 GWh a year. This is equivalent to providing the lighting for about 300 homes. The three turbines were turned on for the first time on 8 April 2008. They are expected to operate 50% of the time on an average day.

[Duke of Buckingham]

April 9

193 – Septimius Severus is proclaimed Roman Emperor by the army in Illyricum (in the Balkans).
475 – Byzantine Emperor Basiliscus issues a circular letter (Enkyklikon) to the bishops of his empire, supporting the Monophysite christological position.
537 – Siege of Rome: The Byzantine general Belisarius receives his promised reinforcements, 1,600 cavalry, mostly of Hunnic or Slavic origin and expert bowmen. He starts, despite of shortages, raids against the Gothic camps and Vitiges is forced into a stalemate.
1241 – Battle of Liegnitz: Mongol forces defeat the Polish and German armies.
1388 – Despite being outnumbered 16 to 1, forces of the Old Swiss Confederacy are victorious over the Archduchy of Austria in the Battle of Näfels.
1413 – Henry V is crowned King of England.
1440 – Christopher of Bavaria is appointed King of Denmark.
1454 – The Treaty of Lodi is signed, establishing a balance of power among northern Italian city-states for almost 50 years.
1511 – St John's College, Cambridge, England, founded by Lady Margaret Beaufort, receives its charter.
1585 – The expedition organised by Sir Walter Raleigh departs England for Roanoke Island (now in North Carolina) to establish the Roanoke Colony.
1609 – Eighty Years' War: Spain and the Dutch Republic sign the Treaty of Antwerp to initiate twelve years of truce.
1682 – Robert Cavelier de La Salle discovers the mouth of the Mississippi River, claims it for France and names it Louisiana.
1782 – American War of Independence: Battle of the Saintes begins.
1860 – On his phonautograph machine, Édouard-Léon Scott de Martinville makes the oldest known recording of an audible human voice.
1852 – At a general conference of the The Church of Jesus Christ of Latter-day Saints, Brigham Young explains the Adam–God doctrine, an important part of the theology of Mormon fundamentalism.
1865 – American Civil War: Robert E. Lee surrenders the Army of Northern Virginia (26,765 troops) to Ulysses S. Grant at Appomattox Courthouse, Virginia, effectively ending the war.
1867 – Alaska purchase: Passing by a single vote, the United States Senate ratifies a treaty with Russia for the purchase of Alaska.
1909 – The U.S. Congress passes the Payne-Aldrich Tariff Act.
1914 – Mexican Revolution: One of the world's first naval/air skirmishes takes place off the coast of western Mexico.
1916 – World War I: The Battle of Verdun – German forces launch their third offensive of the battle.
1917 – World War I: The Battle of Arras – the battle begins with Canadian Corps executing a massive assault on Vimy Ridge.
1918 – World War I: The Battle of the Lys – the Portuguese Expeditionary Corps is crushed by the German forces during what is called the Spring Offensive on the Belgian region of Flanders.
1918 – The National Council of Bessarabia proclaims union with the Kingdom of Romania.
1937 – The Kamikaze arrives at Croydon Airport in London – it is the first Japanese-built aircraft to fly to Europe.
1939 – Marian Anderson sings at the Lincoln Memorial, after being denied the right to sing at the Daughters of the American Revolution's Constitution Hall.
1940 – World War II: Operation Weserübung – Germany invades Denmark and Norway.
1940 – Vidkun Quisling seizes power in Norway.
1942 – World War II: The Battle of Bataan/Bataan Death March – United States forces surrender on the Bataan Peninsula. The Japanese Navy launches an air raid on Trincomalee in Ceylon (Sri Lanka); Royal Navy aircraft carrier HMS Hermes and Royal Australian Navy Destroyer HMAS Vampire are sunk off the island's east coast.
1945 – World War II: The German pocket battleship Admiral Scheer is sunk.
1945 – World War II: The Battle of Königsberg, in East Prussia, ends.
1945 – The United States Atomic Energy Commission is formed.
1947 – The Glazier-Higgins-Woodward tornadoes kill 181 and injure 970 in Texas, Oklahoma, and Kansas.
1947 – The Journey of Reconciliation, the first interracial Freedom Ride begins through the upper South in violation of Jim Crow laws. The riders wanted enforcement of the United States Supreme Court's 1946 Irene Morgan decision that banned racial segregation in interstate travel.
1948 – Jorge Eliécer Gaitán's assassination provokes a violent riot in Bogotá (the Bogotazo), and a further ten years of violence in Colombia known as La violencia.
1948 – Fighters from the Irgun and Lehi Zionist paramilitary groups attacked Deir Yassin near Jerusalem, killing over 100.
1952 – Hugo Ballivian's government is overthrown by the Bolivian National Revolution, starting a period of agrarian reform, universal suffrage and the nationalisation of tin mines
1957 – The Suez Canal in Egypt is cleared and opens to shipping.
1959 – Project Mercury: NASA announces the selection of the United States' first seven astronauts, whom the news media quickly dub the "Mercury Seven".
1961 – The Pacific Electric Railway in Los Angeles, once the largest electric railway in the world, ends operations.
1965 – Astrodome opens. First indoor baseball game is played.
1967 – The first Boeing 737 (a 100 series) makes its maiden flight.
1969 – The "Chicago Eight" plead not guilty to federal charges of conspiracy to incite a riot at the 1968 Democratic National Convention in Chicago, Illinois.
1969 – The first British-built Concorde 002 makes its maiden flight from Filton to RAF Fairford.
1975 – The first game of the Philippine Basketball Association, the second oldest professional basketball league in the world.
1975 – 8 people in South Korea, who are involved in People's Revolutionary Party Incident, are hanged.
1980 – The Iraqi regime of Saddam Hussein kills philosopher Muhammad Baqir al-Sadr and his sister Bint al-Huda after three days of torture.
1981 – The U.S. Navy nuclear submarine USS George Washington (SSBN-598) accidentally collides with the Nissho Maru, a Japanese cargo ship, sinking it.
1989 – The April 9 tragedy in Tbilisi, Georgian SSR an anti-Soviet peaceful demonstration and hunger strikes, demanding restoration of Georgian independence is dispersed by the Soviet army, resulting in 20 deaths and hundreds of injuries.
1991 – Georgia declares independence from the Soviet Union
1992 – A U.S. Federal Court finds former Panamanian dictator Manuel Noriega guilty of drug and racketeering charges. He is sentenced to 30 years in prison.
1992 – John Major's Conservative Party wins an unprecedented fourth general election victory in the United Kingdom.
2003 – 2003 invasion of Iraq: Baghdad falls to American forces;Saddam Hussein statue topples as Iraqis turn on symbols of their former leader, pulling down the statue and tearing it to pieces.
2005 – Wedding of Charles, Prince of Wales and Camilla Parker Bowles; Charles, Prince of Wales marries Camilla Parker Bowles in a civil ceremony at Windsor's Guildhall.
2009 – In Tbilisi, Georgia, up to 60,000 people protest against the government of Mikheil Saakashvili.
2011 – A gunman murdered five people, injured eleven, and committed suicide in a mall in the Netherlands.


Roanoke Colony

The Roanoke Colony on Roanoke Island in Dare County, present-day North Carolina, United States was a late 16th-century attempt by Queen Elizabeth I to establish a permanent English settlement. The enterprise was financed and organized originally by Sir Humphrey Gilbert, who drowned in 1583 during an aborted attempt to colonize St. John's, Newfoundland. Sir Humphrey Gilbert's half brother Sir Walter Raleigh would gain his brother's charter from Queen Elizabeth I and subsequently would execute the details of the charter through his delegates Ralph Lane and Richard Grenville, Raleigh's distant cousin.

The final group of colonists disappeared during the Anglo-Spanish War, three years after the last shipment of supplies from England. Their disappearance gave rise to the nickname "The Lost Colony."


Alaska Purchase

The Alaska Purchase was the acquisition of the Alaska territory by the United States from the Russian Empire in the year 1867 by a treaty ratified by the Senate.

Russia, fearing a war with Britain that would allow the British to seize Alaska, wanted to sell. Russia's major role had been forcing Native Alaskans to hunt for furs, and missionary work to convert them to Christianity. The United States added 586,412 square miles (1,518,800 km2) of new territory. Originally organized as the Department of Alaska, the area was successively the District of Alaska and the Alaska Territory before becoming the modern state of Alaska upon being admitted to the Union as a state in 1959.


Project Mercury

Project Mercury was the first human spaceflight program of the United States. It ran from 1959 through 1963 with two goals: putting a human in orbit around the Earth, and doing it before the Soviet Union, as part of the early space race. It succeeded in the first but not the second: in the first Mercury mission on 5 May 1961, Alan Shepard became the first American in space; however the Soviet Union had put Yuri Gagarin into space one month earlier. John Glenn became the first American to reach orbit on February 20, 1962, during the third manned Mercury flight. Glenn was the third person to reach orbit, following Gagarin and Soviet Titov.

[Duke of Buckingham]

April 10

428 – Nestorius becomes Patriarch of Constantinople.
837 – Halley's Comet and Earth experienced their closest approach to one another when their separating distance equalled 0.0342 AU (3.2 million miles).
879 – Louis III and Carloman II become joint Kings of the Western Franks.
1407 – the lama Deshin Shekpa visits the Ming Dynasty capital at Nanjing. He is awarded with the title Great Treasure Prince of Dharma.
1500 – Ludovico Sforza is captured by the Swiss troops at Novara and is handed over to the French.
1606 – The Virginia Company of London is established by royal charter by James I of England with the purpose of establishing colonial settlements in North America.
1710 – The Statute of Anne, the first law regulating copyright, enters into force in Great Britain.
1741 – War of the Austrian Succession: Prussia defeats Austria in the Battle of Mollwitz.
1809 – Napoleonic Wars: The War of the Fifth Coalition begins when forces of the Austrian Empire invade Bavaria.
1815 – The Mount Tambora volcano begins a three-month-long eruption, lasting until July 15. The eruption ultimately kills 71,000 people and affects Earth's climate for the next two years.
1816 – The Federal government of the United States approves the creation of the Second Bank of the United States.
1821 – Patriarch Gregory V of Constantinople is hanged by the Ottoman government from the main gate of the Patriarchate and his body is thrown into the Bosphorus.
1826 – The 10,500 inhabitants of the Greek town Missolonghi start leaving the town after a year's siege by Turkish forces. Very few of them survive.
1856 – The Theta Chi fraternity is founded at Norwich University in Vermont.
1858 – After the original Big Ben, a 14.5 tonne bell for the Palace of Westminster had cracked during testing, it is recast into the current 13.76 tonne bell by Whitechapel Bell Foundry.
1864 – Archduke Maximilian of Habsburg is proclaimed emperor of Mexico during the French intervention in Mexico.
1865 – American Civil War: A day after his surrender to Union forces, Confederate General Robert E. Lee addresses his troops for the last time.
1866 – The American Society for the Prevention of Cruelty to Animals (ASPCA) is founded in New York City by Henry Bergh.
1868 – At Arogee in Abyssinia, British and Indian forces defeat an army of Emperor Tewodros II. While 700 Ethiopians are killed and many more injured, only two die from the British/Indian troops.
1874 – The first Arbor Day is celebrated in Nebraska.
1887 – On Easter Sunday, Pope Leo XIII authorizes the establishment of The Catholic University of America.
1904 – British mystic Aleister Crowley transcribes the third and final chapter of The Book of The Law.
1912 – The Titanic leaves port in Southampton, England for her first and only voyage.
1916 – The Professional Golfers Association of America (PGA) is created in New York City.
1919 – Mexican Revolution leader Emiliano Zapata is ambushed and shot dead by government forces in Morelos.
1925 – The Great Gatsby by F. Scott Fitzgerald is first published in New York City, by Charles Scribner's Sons.
1940 – Katyn massacre Mass execution of 40 thousands Polish officers and intelligentsia approved and signed by USSR leader Joseph Stalin
1941 – World War II: The Axis Powers in Europe establish the Independent State of Croatia from occupied Yugoslavia with Ante Pavelić's Ustaše fascist insurgents in power.
1944 – Rudolf Vrba and Alfred Wetzler escape from the Birkenau death camp.
1953 – Warner Brothers premieres the first 3-D film from a major American studio, entitled House of Wax.
1957 – The Suez Canal is reopened for all shipping after being closed for three months.
1959 – Akihito, future Emperor of Japan, weds Michiko.
1963 – 129 American sailors die when the submarine USS Thresher sinks at sea.
1968 – Shipwreck of the New Zealand inter-island ferry TEV Wahine outside Wellington harbour.
1970 – Paul McCartney announces that he is leaving The Beatles for personal and professional reasons.
1971 – Ping Pong Diplomacy: In an attempt to thaw relations with the United States, the People's Republic of China hosts the U.S. table tennis team for a weeklong visit.
1972 – 20 days after he is kidnapped in Buenos Aires, Oberdan Sallustro is murdered by communist guerrillas.
1972 – Vietnam War: For the first time since November 1967, American B-52 bombers reportedly begin bombing North Vietnam.
1972 – Seventy-four nations sign the Biological Weapons Convention, the first multilateral disarmament treaty banning the production of biological weapons.
1973 – A British Vanguard turboprop crashes during a snowstorm at Basel, Switzerland killing 104.
1979 – Red River Valley Tornado Outbreak: A tornado lands in Wichita Falls, Texas killing 42 people.
1991 – Italian ferry Moby Prince collides with an oil tanker in dense fog off Livorno, Italy killing 140.
1991 – A rare tropical storm develops in the South Atlantic Ocean near Angola; the first to be documented by satellites.
1992 – The Maraghar Massacre, killing of ethnic Armenian civil population of the village Maraghar by Azerbaijani troops during the Nagorno-Karabakh War.
2009 – President of Fiji Ratu Josefa Iloilo announces he will suspend the constitution and assume all governance in the country, creating a constitutional crisis.
2010 – Polish Air Force Tu-154M crashes near Smolensk, Russia, killing all 96 people on board including President Lech Kaczyński.


Halley's Comet

Halley's calculations enabled the comet's earlier appearances to be found in the historical record. The following table sets out the astronomical designations for every apparition of Halley's Comet from 240 BCE, the earliest documented widespread sighting. For example, "1P/1982 U1, 1986 III, 1982i" indicates that for the perihelion in 1986, Halley's Comet was the first period comet known (designated 1P) and this apparition was the first seen in "half-month" U (the first half of November) in 1982 (giving 1P/1982 U1); it was the third comet past perihelion in 1986 (1986 III); and it was the ninth comet spotted in 1982 (provisional designation 1982i). The perihelion dates of each apparition are shown. The perihelion dates farther from the present are approximate, mainly because of uncertainties in the modeling of non-gravitational effects. Perihelion dates 1607 and later are in the Gregorian calendar, while perihelion dates of 1531 and earlier are in the Julian calendar.

1P/−239 K1, −239 (25 May 240 BCE)
1P/−163 U1, −163 (12 November 164 BCE)
1P/−86 Q1, −86 (6 August 87 BCE)
1P/−11 Q1, −11 (10 October 12 BCE)
1P/66 B1, 66 (25 January 66 CE)
1P/141 F1, 141 (22 March 141)
1P/218 H1, 218 (17 May 218)
1P/295 J1, 295 (20 April 295)
1P/374 E1, 374 (16 February 374)
1P/451 L1, 451 (28 June 451)
1P/530 Q1, 530 (27 September 530)
1P/607 H1, 607 (15 March 607)
1P/684 R1, 684 (2 October 684)
1P/760 K1, 760 (20 May 760)
1P/837 F1, 837 (28 February 837)
1P/912 J1, 912 (18 July 912)
1P/989 N1, 989 (5 September 989)
1P/1066 G1, 1066 (20 March 1066)
1P/1145 G1, 1145 (18 April 1145)
1P/1222 R1, 1222 (28 September 1222)
1P/1301 R1, 1301 (25 October 1301)
1P/1378 S1, 1378 (10 November 1378)
1P/1456 K1, 1456 (9 June 1456)
1P/1531 P1, 1531 (26 August 1531)
1P/1607 S1, 1607 (27 October 1607)
1P/1682 Q1, 1682 (15 September 1682)
1P/1758 Y1, 1759 I (13 March 1759)
1P/1835 P1, 1835 III (16 November 1835)
1P/1909 R1, 1910 II, 1909c (20 April 1910)
1P/1982 U1, 1986 III, 1982i (9 February 1986)
Next perihelion predicted 28 July 2061


More news on Duke the Menace http://www.free-dc.org/forum/showthr...l=1#post165038

[Duke of Buckingham]

April 11

491 – Flavius Anastasius becomes Byzantine Emperor, with the name of Anastasius I.
1079 – Bishop Stanislaus of Kraków is executed by order of Bolesław II of Poland.
1241 – Batu Khan defeats Béla IV of Hungary at the Battle of Muhi.
1512 – War of the League of Cambrai: French forces led by Gaston de Foix win the Battle of Ravenna.
1544 – French forces defeat a Spanish army at the Battle of Ceresole.
1689 – William III and Mary II are crowned as joint sovereigns of Britain.
1713 – War of the Spanish Succession (Queen Anne's War): Treaty of Utrecht.
1727 – Premiere of Johann Sebastian Bach's St Matthew Passion BWV 244b at the St. Thomas Church, Leipzig
1775 – The last execution for witchcraft in Germany takes place.
1809 – Battle of the Basque Roads Naval battle fought between France and the United Kingdom
1814 – The Treaty of Fontainebleau ends the War of the Sixth Coalition against Napoleon Bonaparte, and forces him to abdicate unconditionally for the first time.
1856 – Battle of Rivas: Juan Santamaria burns down the hostel where William Walker's filibusters are holed up.
1868 – Former Shogun Tokugawa Yoshinobu surrenders Edo Castle to Imperial forces, marking the end of the Tokugawa shogunate.
1876 – The Benevolent and Protective Order of Elks is organized.
1881 – Spelman College is founded in Atlanta, Georgia as the Atlanta Baptist Female Seminary, an institute of higher education for African-American women.
1888 – The Concertgebouw in Amsterdam is inaugurated.
1908 – SMS Blücher, the last armored cruiser to be built by the German Imperial Navy, launches.
1913 – The Nevill Ground's pavilion is destroyed in a suffragette arson attack becoming the only cricket ground to be attacked by suffragettes.
1919 – The International Labour Organization is founded.
1921 – Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.
1945 – World War II: American forces liberate the Buchenwald concentration camp.
1951 – Korean War: President Harry Truman relieves General of the Army Douglas MacArthur of overall command in Korea.
1951 – The Stone of Scone, the stone upon which Scottish monarchs were traditionally crowned, is found on the site of the altar of Arbroath Abbey. It had been taken by Scottish nationalist students from its place in Westminster Abbey.
1952 – The Battle of Nanri Island takes place.
1954 – The most boring day since 1900 according to the True Knowledge Answer Engine
1955 – The Air India Kashmir Princess is bombed and crashes in a failed assassination attempt on Zhou Enlai by the Kuomintang.
1957 – United Kingdom agrees to Singaporean self-rule.
1961 – The trial of Adolf Eichmann begins in Jerusalem.
1963 – Pope John XXIII issues Pacem in Terris, the first encyclical addressed to all instead of to Catholics alone.
1965 – The Palm Sunday tornado outbreak of 1965: Fifty-one tornadoes hit in six Midwestern states, killing 256 people.
1968 – President Lyndon B. Johnson signs the Civil Rights Act of 1968, prohibiting discrimination in the sale, rental, and financing of housing.
1970 – Apollo 13 is launched.
1972 – First edition of the BBC comedy panel game I'm Sorry I Haven't A Clue is broadcast, one of the longest running British radio shows in history.
1976 – The Apple I is created.
1977 – London Transport's Silver Jubilee buses are launched.
1979 – Ugandan dictator Idi Amin is deposed.
1981 – A massive riot in Brixton, South London, results in almost 300 police injuries and 65 serious civilian injuries.
1987 – The London Agreement is secretly signed between Israeli Foreign Affairs Minister Shimon Peres and King Hussein of Jordan.
1989 – Ron Hextall becomes the first goaltender in NHL history to score a goal in the playoffs.
1990 – Customs officers in Middlesbrough, England, United Kingdom, say they have seized what they believe to be the barrel of a massive gun on a ship bound for Iraq.
1993 – 450 prisoners rioted at the Southern Ohio Correctional Facility in Lucasville, Ohio, and continued to do so for ten days, citing grievances related to prison conditions, as well as the forced vaccination of Nation of Islam prisoners (for tuberculosis) against their religious beliefs.
2001 – The detained crew of a United States EP-3E aircraft that landed in Hainan, China after a collision with a J-8 fighter is released.
2002 – The Ghriba synagogue bombing by Al Qaeda kills 21 in Tunisia.
2002 – Over two hundred thousand people marched in Caracas towards the Presidential Palace of Miraflores, to demand the resignation of president Hugo Chávez. 19 of the protesters are killed, and the Minister of Defense Gral. Lucas Rincon announced Hugo Chávez resignation on national TV.
2006 – Iranian President Mahmoud Ahmadinejad announces that Iran has successfully enriched uranium.
2007 – 2007 Algiers bombings: Two bombings in the Algerian capital of Algiers, kills 33 people and wounds a further 222 others.
2011 – 2011 Minsk Metro bombing
2012 – A magnitude 8.2 earthquake hit Indonesia, off northern Sumatra at a depth of 16.4 km. After that there are still more continuation earthquake. Tsunami had hit the island of Nias at Indonesia.

[Duke of Buckingham]

Benevolent and Protective Order of Elks

The Benevolent and Protective Order of Elks (BPOE; also often known as the Elks Lodge or simply The Elks) is an American fraternal order and social club founded in 1868. It is one of the leading fraternal orders in the U.S., claiming nearly one million members.

The Elks had modest beginnings in 1868 as a social club (then called the "Jolly Corks") established as a private club to elude New York City laws governing the opening hours of public taverns. After the death of a member left his wife and children without income, the club took up additional service roles, rituals and a new name. Desiring to adopt "a readily identifiable creature of stature, indigenous to America," fifteen members voted 8–7 in favor of the elk above the buffalo. Early members were mostly from theatrical performing troupes in New York City. It has since evolved into a major American fraternal, charitable, and service order with more than a million members, both men and women, throughout the United States and the former territories of the Philippines and the Panama Canal.

When founded, membership in the BPOE was denied to blacks. Because of this policy, an unaffiliated, primarily black organization modeled on the BPOE was formed in 1898. This "Improved Benevolent Protective Order of the Elks of the World" (IBPOEW) remains a separate organization to this day. Membership in the BPOE was opened to African Americans in the 1970s, although the Winter Haven, Florida Elks Club was famously segregated as late as 1985, when Boston Red Sox Coach Tommy Harper protested a Red Sox policy of permitting them into the spring training clubhouse to issue lodge clubroom invitations to white players only. Women were permitted to join in the mid-1990s, but currently atheists are excluded. The opening of membership to women was mandated by the Oregon Public Accommodations Act, which was found by an appeals court to apply to the BPOE, and it has been speculated that the religious restriction might be litigated on the same basis. A year after the national organization changed its policy to allow women to join, the Vermont Supreme Court ordered punitive damages of $5,000 for each of seven women whom a local chapter had rejected citing other reasons. Current members are required to be U.S. citizens over the age of 21 and believe in God.


Buchenwald concentration camp

Buchenwald concentration camp (German: Konzentrationslager (KZ) Buchenwald, IPA: [ˈbuːxənvalt]; literally, in English: beech forest) was a German Nazi concentration camp established on the Ettersberg (Etter Mountain) near Weimar, Germany, in July 1937, one of the first and the largest of the concentration camps on German soil.

Camp prisoners from all over Europe and the Soviet Union—Jews, non-Jewish Poles and Slovenes, the mentally ill and physically-disabled from birth defects, religious and political prisoners, Roma and Sinti, Freemasons, Jehovah's Witnesses, criminals, homosexuals, and prisoners of war— worked primarily as forced labor in local armament factories. From 1945 to 1950, the camp was used by the Soviet occupation authorities as an internment camp, known as NKVD special camp number 2.

Today the remains of Buchenwald serves as a memorial and permanent exhibition and museum.


Apollo 13

The mission was launched at the planned time, 02:13:00 PM EST (19:13:00 UTC) on April 11. An anomaly occurred when the second-stage, center (inboard) engine shut down about two minutes early. The four outboard engines and the third-stage engine burned longer to compensate, and the vehicle achieved very close to the planned circular 100 nautical miles (190 km) parking orbit, followed by a normal translunar injection about two hours later. The engine shutdown was determined to be caused by severe pogo oscillations measured at a strength of 68 g and a frequency of 16 hertz, flexing the thrust frame by 3 inches (76 mm). The vehicle's guidance system shut the engine down in response to sensed thrust chamber pressure fluctuations. Pogo oscillations had been seen on previous Titan rockets, and also on the Saturn V during Apollo 6, but on Apollo 13 they were amplified by an unexpected interaction with turbopump cavitation. Later missions implemented anti-pogo modifications that had been under development. These included addition of a helium gas reservoir to the center engine liquid oxygen line to dampen pressure oscillations, an automatic cutoff as a backup, and simplification of the propellant valves of all five second-stage engines.

The crew performed the separation and transposition maneuver to dock the CM Odyssey to the LM Aquarius, and pulled away from the spent third stage, which ground controllers then sent on a course to impact the Moon in range of a seismometer placed on surface by Apollo 12. They then settled in for the three-day trip to Fra Mauro.


Apple I

The original Apple Computer, also known retroactively as the Apple I, or Apple-1, is a personal computer released by the Apple Computer Company (now Apple Inc.) in 1976. They were designed and hand-built by Steve Wozniak. Wozniak's friend Steve Jobs had the idea of selling the computer. The Apple I was Apple's first product, and to finance its creation, Jobs sold his only means of transportation, a VW Microbus and Wozniak sold his HP-65 calculator for $500. It was demonstrated in July 1976 at the Homebrew Computer Club in Palo Alto, California.

The Apple I went on sale in July 1976 at a price of US$666.66, because Wozniak "liked repeating digits" and because they originally sold it to a local shop for $500 plus a one-third markup. About 200 units were produced. Unlike other hobbyist computers of its day, which were sold as kits, the Apple I was a fully assembled circuit board containing about 60+ chips. However, to make a working computer, users still had to add a case, power supply transformers, power switch, ASCII keyboard, and composite video display. An optional board providing a cassette interface for storage was later released at a cost of $72.

The Apple I's built-in computer terminal circuitry was distinctive. All one needed was a keyboard and an inexpensive television set. Competing machines such as the Altair 8800 generally were programmed with front-mounted toggle switches and used indicator lights (red LEDs, most commonly) for output, and had to be extended with separate hardware to allow connection to a computer terminal or a teletypewriter machine. This made the Apple I an innovative machine for its day. In April 1977 the price was dropped to $475. It continued to be sold through August 1977, despite the introduction of the Apple II in April 1977, which began shipping in June of that year. Apple dropped the Apple I from its price list by October 1977, officially discontinuing it. As Wozniak was the only person who could answer most customer support questions about the computer, the company offered Apple I owners discounts and trade-ins for Apple IIs to persuade them to return their computers, contributing to their scarcity. In 1976, Concord High School Junior Wai Lee assembled one of the first 12 Apple Is (no serial number), the first Apple Computer in an aluminum housing.


2012 Indian Ocean earthquakes

The 2012 Indian Ocean earthquakes were magnitude 8.6 and 8.2 Mw undersea earthquakes that struck near the Indonesian province of Aceh on Wednesday, April 11, 2012, at 15:38 local time. Initially, authorities feared that the initial earthquake would cause a tsunami and warnings were issued across the Indian Ocean; however, these warnings were subsequently cancelled. The earthquake was the 13th strongest earthquake since 1900, an unusually strong intraplate earthquake, and the largest strike-slip earthquake ever recorded.

A magnitude 8.2 aftershock struck at a depth of 16.4 kilometres (10.2 mi) about 430 km (267 mi) southwest of Banda Aceh at 10:43 UTC, two hours after the initial earthquake. Many aftershocks with magnitude readings between 5.0 to 6.0 were recorded for several hours after the initial earthquake which hit the west coast of northern Sumatra. Since the initial magnitude 8.6 earthquake, there have been 111 aftershocks over magnitude 4.0 according to USGS, including a magnitude 6.2 on April 15, 2012.

[Duke of Buckingham]

April 12

238 – Gordian II loses the Battle of Carthage against the Numidian forces loyal to Maximinus Thrax and is killed. Gordian I, his father, commits suicide.
467 – Anthemius is elevated to Emperor of the Western Roman Empire.
1204 – The Crusaders of the Fourth Crusade breach the walls of Constantinople and enter the city, which they completely occupy the following day.
1557 – Cuenca is founded in Ecuador.
1606 – The Union Flag is adopted as the flag of English and Scottish ships.
1776 – American Revolution: With the Halifax Resolves, the North Carolina Provincial Congress authorizes its Congressional delegation to vote for independence from Britain.
1820 – Alexander Ypsilantis is declared leader of Filiki Eteria, a secret organization to overthrow Ottoman rule over Greece.
1831 – Soldiers marching on the Broughton Suspension Bridge in Manchester, England cause it to collapse.
1861 – American Civil War: The war begins with Confederate forces firing on Fort Sumter, in the harbor of Charleston, South Carolina.
1862 – American Civil War: The Andrews Raid (the Great Locomotive Chase) occurred, starting from Big Shanty, Georgia (now Kennesaw).
1864 – American Civil War: The Fort Pillow massacre: Confederate forces kill most of the African American soldiers that surrendered at Fort Pillow, Tennessee.
1865 – American Civil War: Mobile, Alabama, falls to the Union Army.
1877 – The United Kingdom annexes the Transvaal.
1910 – The SMS Zrinyi, one of the last pre-dreadnoughts built by the Austro-Hungarian Navy, is launched.
1917 – World War I: Canadian forces successfully complete the taking of Vimy Ridge from the Germans.
1927 – April 12 Incident: Chiang Kai-shek orders the Communist Party of China members executed in Shanghai, ending the First United Front.
1928 –The Bremen, a German Junkers W33 type aircraft, takes off for the first successful transatlantic aeroplane flight from east to west.
1934 – The strongest surface wind gust in the world at 231 mph, is measured on the summit of Mount Washington, New Hampshire.
1934 – The U.S. Auto-Lite Strike begins, culminating in a five-day melee between Ohio National Guard troops and 6,000 strikers and picketers.
1935 – First flight of the Bristol Blenheim.
1937 – Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft, at Rugby, England.
1945 – U.S. President Franklin D. Roosevelt dies while in office; vice-president Harry Truman is sworn in as the 33rd President.
1955 – The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.
1961 – The Russian (Soviet) cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first manned orbital flight, in Vostok 3KA-2 (Vostok 1).
1963 – The Soviet nuclear-powered submarine K-33 collides with the Finnish merchant vessel M/S Finnclipper in the Danish straits.
1968 – Nerve gas accident at Skull Valley, Utah.
1970 – Soviet submarine K-8, carrying four nuclear torpedoes, sinks in the Bay of Biscay four days after a fire on board.
1980 – Samuel Doe takes control of Liberia in a coup d'état, ending over 130 years of minority Americo-Liberian rule over the country.
1980 – Terry Fox begins his "Marathon of Hope" at St. John's, Newfoundland.
1981 – The first launch of a Space Shuttle (Columbia) takes place - the STS-1 mission.
1990 – Jim Gary's "Twentieth Century Dinosaurs" exhibition opens at the Smithsonian Institution National Museum of Natural History in Washington, D.C.
1992 – The Euro Disney Resort officially opens with its theme park Euro Disneyland. The resort and its park's name are subsequently changed to Disneyland Paris.
1994 – Canter & Siegel post the first commercial mass Usenet spam.
1998 – An earthquake in Slovenia, measuring 5.6 on the Richter scale occurs near the town of Bovec.
1999 – US President Bill Clinton is cited for contempt of court for giving "intentionally false statements" in a sexual harassment civil lawsuit.
2002 – A female suicide bomber detonated at the entrance to Jerusalem's Mahane Yehuda open-air market, killing 7 and wounding 104.
2007 – A suicide bomber penetrates the Green Zone and detonates in a cafeteria within a parliament building, killing Iraqi MP Mohammed Awad and wounding more than twenty other people.
2009 – Zimbabwe officially abandons the Zimbabwe Dollar as their official currency.
2010 – A train derails near Merano, Italy, after running into a landslide, causing nine deaths and injuring 28 people.


Broughton Suspension Bridge

Broughton Suspension Bridge was a suspended-deck suspension bridge built in 1826 to span the River Irwell between Broughton and Pendleton, now in Salford, Greater Manchester, England. It was one of the first suspension bridges constructed in Europe. On 12 April 1831, the bridge collapsed, reportedly owing to mechanical resonance induced by troops marching over the bridge in step. A bolt in one of the stay-chains snapped, causing the bridge to collapse at one end, throwing about 40 of the men into the river. As a result of the incident, the British Army issued an order that troops should "break step" when crossing a bridge.

The bridge's construction has been attributed to Samuel Brown, but this has been questioned. Some sources have suggested that it may have been built by Thomas Cheek Hewes, a Manchester millwright and textile machinery manufacturer.

The bridge was rebuilt and strengthened after the collapse but was propped with temporary piles whenever a large crowd was expected. In 1924, it was replaced by a Pratt truss footbridge, which is still in use.


Battle of Fort Pillow

The Battle of Fort Pillow, also known as the Fort Pillow Massacre, was fought on April 12, 1864, at Fort Pillow on the Mississippi River in Henning, Tennessee, during the American Civil War. The battle ended with a massacre of surrendered Federal black troops by soldiers under the command of Confederate Major General Nathan Bedford Forrest. Military historian David J. Eicher concluded, "Fort Pillow marked one of the bleakest, saddest events of American military history."


Polio vaccine

Two polio vaccines are used throughout the world to combat poliomyelitis (or polio). The first was developed by Jonas Salk and first tested in 1952. Announced to the world by Salk on April 12, 1955, it consists of an injected dose of inactivated (dead) poliovirus. An oral vaccine was developed by Albert Sabin using attenuated poliovirus. Human trials of Sabin's vaccine began in 1957 and it was licensed in 1962. Because there is no long term carrier state for poliovirus in immunocompetent individuals, polioviruses have no non-primate reservoir in nature, and survival of the virus in the environment for an extended period of time appears to be remote. Therefore, interruption of person to person transmission of the virus by vaccination is the critical step in global polio eradication. The two vaccines have eradicated polio from most countries in the world, and reduced the worldwide incidence from an estimated 350,000 cases in 1988 to 1,652 cases in 2007.


Vostok 1

Vostok 1 (Russian: Восток-1, East 1 or Orient 1) was the first spaceflight in the Vostok program and the first human spaceflight in history. The Vostok 3KA spacecraft was launched on April 12, 1961. The flight took Yuri Gagarin, a cosmonaut from the Soviet Union, into space. The flight marked the first time that a human entered outer space, as well as the first orbital flight of a manned vehicle. Vostok 1 was launched by the Soviet space program, and was designed by Soviet engineers guided by Sergei Korolev under the supervision of Kerim Kerimov and others.

The spaceflight consisted of a single orbit of the Earth (to this date the shortest orbital manned spaceflight). According to official records, the spaceflight took 108 minutes from launch to landing. As planned, Gagarin landed separately from his spacecraft, having ejected with a parachute 7 km (23,000 ft) above ground. Due to the secrecy surrounding the Soviet space program at the time, many details of the spaceflight only came to light years later, and several details in the original press releases turned out to be false.


STS-1

STS-1 was the first orbital flight of NASA's Space Shuttle program. Space Shuttle Columbia launched on 12 April 1981, and returned to Earth on 14 April, having orbited the Earth 37 times during its 54.5-hour mission. Columbia carried a crew of two – mission commander John W. Young and pilot Robert L. Crippen. It was the first American manned space flight since the Apollo-Soyuz Test Project on 15 July 1975. STS-1 was also the only US manned maiden test flight of a new spacecraft system, although it was the culmination of atmospheric testing of the Space Shuttle orbiter.