Propaganda of the deed (or propaganda by the deed, from the French propagande par le fait) is specific political direct action meant to be exemplary to others and serve as a catalyst for revolution.
It is primarily associated with acts of violence perpetrated by proponents of insurrectionary anarchism in the late 19th and early 20th century, including bombings and assassinations aimed at the State, the alleged ruling class, and religious groups, even though propaganda of the deed also had non-violent applications. These acts of terrorism were intended to ignite a "spirit of revolt" by demonstrating the state, the middle and upper classes, and religious organizations were not omnipotent and also to provoke the State to become escalatingly repressive in its response. In 1881, the International Anarchist Congress of London gave the tactic its approval.
One of the first individuals to conceptualise propaganda by the deed was the Italian revolutionary Carlo Pisacane (1818–1857), who wrote in his "Political Testament" (1857) that "ideas spring from deeds and not the other way around." Mikhail Bakunin (1814–1876), in his "Letters to a Frenchman on the Present Crisis" (1870) stated that "we must spread our principles, not with words but with deeds, for this is the most popular, the most potent, and the most irresistible form of propaganda." The concept, in a broader setting, has a rich heritage, as the words of Francis of Assisi reveal: "Let them show their love by the works they do for each other, according as the Apostle says: 'let us not love in word or in tongue, but in deed and in truth.
Some anarchists, such as Johann Most, advocated publicizing violent acts of retaliation against counter-revolutionaries because "we preach not only action in and for itself, but also action as propaganda." It was not advocacy for mass murder, but a call for targeted killings of the representatives of capitalism and government at a time when such action might garner sympathy from the population, such as during periods of government repression or labor conflicts, although Most himself once claimed that "the existing system will be quickest and most radically overthrown by the annihilation of its exponents.