As the information presently given under 'User Timeline and Firsts' is the exact same information as given under 'Your CPID page' (the part under your stats),
I'd like to suggest something that more sort of covers the title.
Three columns:
  1. Sign-up dates for the various projects
  2. (Mega)Milestones per date for the various projects (including #1 positions)
  3. (Mega)Milestones per date for BOINC combined score (including #1 positions)


I do not know whether this is all possible with the present database, it is after all just a suggestion.