There were two revolutions that took place in Russia during 1917. In March there was a true Marxist revolution. In November, Vladimir Lenin, led a second revolution that was not a true Marxist revolution.

In 2010, Julia Gillard becomes the first female elected Prime Minister of Australia. She served as the 27th Prime Minister of Australia from 2010 to 2013.

The New Deal was a series of programs enacted in the United States, basically between 1933 and 1938. They included both laws passed by Congress as well as presidential executive orders during the first term (1933-37) of President Franklin D. Roosevelt.

Rodney King was an American construction worker who became nationally known after being beaten by Los Angeles police officers in 1991. Four officers were charged, three were acquitted of all charges. The acquittals are generally considered to have triggered the 1992 Los Angeles riots, in which 53 people were killed and over 2,000 were injured, ending only when the military was called in.

The British rule lasted until 1947, when the British Indian Empire was partitioned into two sovereign dominion states (India and Pakistan).

Titanic was a British passenger ship that sank in the Atlantic Ocean after colliding with an iceberg during her maiden voyage from Southampton, UK to New York City, US.

The Space Shuttle Challenger disaster occurred on January 28, 1986, when Challenger broke apart 73 seconds into its flight, leading to the deaths of its seven crew members.

The sarin attack was an act of domestic terrorism staged by members of Aum Shinrikyo on March 20, 1995. Sarin is both colorless and odorless. It is used as a chemical weapon due to its extreme potency as a nerve agent.

Captain James Cook was a British explorer and captain in the Royal Navy. He made three voyages to the Pacific Ocean and recorded the first European contact with the eastern coastline of Australia and the Hawaiian Islands.

Gandhi's Salt March began 12 March 1930 and continued until 6 April 1930. The Long March began Mao Zedong's ascent to power. It started in 1934. March on Washington for Jobs and Freedom at which Martin Luther King, Jr. delivered his I-Have-a-Dream speech happened in 1963. Martin Luther King's Selma to Montgomery March took place in 1965.