Andrea Salsedo (1881 - 1920) was an Italian anarchist and associate of influential anarchist Luigi Galleani who died on this day in 1920, after falling 14 stories from a government building while being detained by police.
On this day in 1842, "Dorrites", members of a working class movement that sought reforms in Rhode Island, held an inauguration parade for their leader Thomas Dorr, convening a "People's Legislature" and attacking a state arsenal.
Image: A drawing of a Dorrite protest with the caption "Dorr flourishing the Sword he received in New York, makes great professions of what he would do"
On this day in 1971, President Nixon executed "Operation Garden Plot", deploying 10,000 federal troops in Washington D.C. to suppress Vietnam War protests, leading to the largest mass arrest in U.S. history - 12,614 people in total.
Image: Riot squads sweep aggressively through D.C. neighborhoods. Photo by Douglas Chevalier/Washington Post
On this day in 1926, a general strike in England involving approximately 1.7 million workers was initiated by the Trades Union Congress (TUC) in response to coal mine owners proposing reductions in pay for miners the previous year.
The May Days, a series of street battles fought between Republican factions of the Spanish Civil War, began on this day in 1937 when 200 police officers attempted to seize control of an anarchist press building.