DerekG152's profile

Joined about almost 5 years ago.

DerekG152's timelines

Charles Darwin February 12th, 1809 through April 19th, 1882
Charles Darwin February 12th, 1809 through April 19th, 1882 timeline
Thomas Kuhn, July 18th, 1922 through June 17th, 1996
Thomas Kuhn, July 18th, 1922 through June 17th, 1996 timeline