Mikhail Alexandrovich Bakunin was a Russian revolutionary anarchist. He is among the most influential figures of anarchism and a major figure in the revolutionary socialist, social anarchist, and collectivist anarchist traditions. Bakunin's prestige as a revolutionary also made him one of the most famous ideologues in Europe, gaining substantial influence among radicals throughout Russia and Europe.

Alexander Ivanovich Herzen was a Russian writer and thinker known as the precursor of Russian socialism and one of the main precursors of agrarian populism. With his writings, many composed while exiled in London, he attempted to influence the situation in Russia, contributing to a political climate that led to the emancipation of the serfs in 1861. He published the important social novel Who is to Blame? (1845–46). His autobiography, My Past and Thoughts, is often considered one of the best examples of that genre in Russian literature.