1877 Rioting in Baltimore, Maryland, by Baltimore and Ohio Railroad workers is put down by the state militia, resulting in nine deaths.
1877 After rioting by Baltimore and Ohio Railroad workers and the deaths of nine rail workers at the hands of the Maryland militia, workers in Pittsburgh, Pennsylvania stage a sympathy strike that is met with an assault by the state militia.
1885 Riots break out in Montreal to protest against compulsory smallpox vaccination.
1946 In San Francisco Bay, U.S. Marines from the nearby Treasure Island Navy Base stop a two-day riot at Alcatraz federal prison. Five people are killed in the riot.
1967 12th Street Riot: in Detroit, Michigan, one of the worst riots in United States history begins on 12th Street in the predominantly African American inner city. It will leave 43 killed, 342 injured and 1,400 buildings burned.
1968 Riots in Chicago, Illinois, during the Democratic National Convention.
1970 The Chicago Seven are found not guilty of conspiring to incite riots at the 1968 Democratic National Convention.
1984 Indian Prime Minister Indira Gandhi is assassinated by two security guards. Riots soon break out in New Delhi and nearly 10,000 Sikhs are killed.
1992 1992 Los Angeles riots: Riots in Los Angeles, California, following the acquittal of police officers charged with excessive force in the beating of Rodney King. Over the next three days 53 people are killed and hundreds of buildings are destroyed.
2005 In Belmopan, Belize, the unrest over the government's new taxes erupts into riots.