On this day in 1887, thousands of marchers protesting unemployment and state repression clashed with the Metropolitan Police and British Army in Trafalgar Square, Central London, an event known as "Bloody Sunday".
On this day in 1995, four of Full Sutton Prison's six wings (all those not set aside for sex offenders) went on strike. The strike lasted three days before forcibly being broken up by officers in riot gear.
Rohana Wijeweera was a Sri Lankan Marxist revolutionary and the founding leader of Janatha Vimukthi Peramuna (JVP, English: "People's Liberation Front"). He was assassinated by the Sri Lankan government on this day in 1989.
Image: A photo portrait of Rohana Wijeweera, unknown date and location. [Wikipedia]
Karen Silkwood was an American chemical technician and labor union activist who was possibly assassinated via car crash on this day in 1974, while en route to meet with a NYT journalist and union official.
On this day in 1909, British suffragette Theresa Garnett (1888 - 1966) assaulted Winston Churchill with a whip, striking him several times while shouting "Take that in the name of the insulted women of England!"