pkrodriguez2006's profile

Joined about over 3 years ago.

pkrodriguez2006's timelines

Ernst Mach (February 18, 1838 - February 19, 1916)
Ernst Mach (February 18, 1838 - February 19, 1916) timeline
Helen Longino (b. July 13, 1944
Helen Longino (b. July 13, 1944 timeline