The Holocaust (1940): (http://www.timetoast.com/timelines/eastdale-history-20-defining-moments-in-20th-century-canada--10 )
The Holocaust was the genocide of European Jews. Hitler planned to eliminate over 11 million European Jews by using concentration camps that had gas chambers, which could murder a few thousand people in three to fifteen minutes. Hitler would elite his forces for carrying out his plans by increasing their pay as well as giving them a share of the loot stolen from their victims. The reason the Holocaust was never stopped was because people turned their backs to the problem because they didn't want to be killed for being outspoken. Also, Allied nations are partly blamed for the continuation of the Holocaust because before the war anti-Semitism was common throughout the world.

The Cold War (1950): (http://www.timetoast.com/timelines/eastdale-history-20-defining-moments-in-20th-century-canada--10 )
The Cold War was the standstill between the U.S and the Soviets after World War II. The Cold War started because The Soviets and the U.S were fighting over who rightfully deserved the newly liberated land. This argument had become a head to head "battle" between Britain/U.S/Canada and the USSR. The United States didn't want the USSR to take over the rest of newly liberated Europe with communism. The closest it ever got to an actual war was in 1962 when missiles had been discovered in Cuba. The Cubans had been working with the Russians. The Cold War ended in 1989 when the Berlin Wall fell, along with the communism.

Terry Fox (1980) (http://www.timetoast.com/timelines/eastdale-history-20-defining-moments-in-20th-century-canada--10 ):
Terry Fox was a Canadian humanitarian, an athlete and a cancer research activist. In 1977 Terry found out that he had a malignant tumor in right knee. The doctors gave him a 50-70 percent survival rate if