Mikhail Alexandrovich Bakunin (; ; – 1 July 1876) was a Russian revolutionary anarchist, and founder of collectivist anarchism. He is considered among the most influential figures of anarchism, and one of the principal founders of the "social anarchist" tradition. Bakunin's enormous prestige as an activist made him one of the most famous ideologues in Europe, and he gained substantial influence among radicals throughout Russia and Europe.