In the mid-19th century Étienne Cabet had an idea to establish a utopian society in Texas, and he moved his followers from France to do it. Things went badly, but he persisted, and established multiple communities in North America.
Research:

SYMHC Classics: Olympe de Gouges
36:49

Behind the Scenes Minis: Percy Theories
16:43

Percy Fawcett, Manuscript 512, and a Lost City in the Amazon, Pt. 2
37:10