holterpa123's profile

Joined about almost 2 years ago.

holterpa123's timelines

Ernst Mach (February 18, 1838 - February 19, 1916)
Ernst Mach (February 18, 1838 - February 19, 1916) timeline
Paul Feyerabend (January 13, 1924 - February 11, 1994)
Paul Feyerabend (January 13, 1924 - February 11, 1994) timeline