Peter Kropotkin was incredibly influential in the development of anarchism in the 19th and early 20th centuries. Part one of this subject focuses on the formative moments in his early life that contributed to his becoming an anarchist communist.
Research:

SYMHC Classics: Haymarket Riot
37:40

Behind the Scenes Minis: Serving Lip and Ethics
26:19

James Braid, Surgeon and Father of Hypnotism
43:36