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Pierre-Joseph Proudhon

French politician, mutualist philosopher, economist, and socialist (1809-1865)

1

Errico Malatesta

Anarchist

2

Peter Kropotkin

Russian zoologist, evolutionary theorist, philosopher, scientist, revolutionary, economist, activist, geographer, writer (1842-1921)

3

Rudolf Rocker

anarcho-syndicalist writer and activist

4

Benjamin Tucker

American journalist and anarchist

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Johann Most

German-American anarchist politician, newspaper editor, and orator (1846-1906)