MORE EVENTS ON THIS DAY

2017: American comedian and actor Jerry Lewis, who was known for his unrestrained comic style and his numerous movies with Dean Martin, died at age 91. [Take our quiz about A-list actors.]

2014: Indian teacher B.K.S. Iyengar, who helped popularize Yoga (a system of Indian philosophy) in the West, died at the age of 95. [Sort fact from fiction in our quiz about India.]

2012: American comedienne and actress Phyllis Diller—who was one of the first female stand-up comics, noted for her raucous personality and self-deprecating humour—died in Los Angeles. [Test your knowledge of pop culture.]

1968: The Warsaw Pact nations (except Romania and Albania), led by the Soviet Union, invaded Czechoslovakia to put an end to the Prague Spring.

1960: Senegal seceded from the Mali Federation, declaring its full independence. [ Sort fact from fiction in our quiz about Africa.]

1940: Leon Trotsky was assassinated by a Stalinist agent in Mexico. [Learn the answers to five important questions about Leon Trotsky.]