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The cities Fort William and Port Arthur are merged to create Thunder Bay, Ontario
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As is standard with UTC, this article labels days using the Gregorian calendar, and counts times within each day in hours, minutes, and seconds. Some of the examples also show International Atomic Time (TAI), another time scheme, which uses the same seconds and is displayed in the same format as UTC, but in which every day is exactly 86 400 s long, gradually losing synchronization with the Earth's rotation at a rate of roughly one second per year.
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An earthquake (Richter Scale 7.7 magnitude) at Yunnan, China kills at least 15,621
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The federal government announces plans to convert the nation to the metric system
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train collision near Buenos Aires, Argentina kills 236.
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An avalanche at Val d'Isère, France kills 39 tourists
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A total solar eclipse affects the Maritimes
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Lieutenant William Calley goes on trial for the My Lai massacre. 500 civilians were murderd.
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Vietnam War: In Paris, a Communist delegation rejects U.S. President Richard Nixon's October 7 peace proposal as "a maneuver to deceive world opinion."
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INCO builds the world's tallest smokestack at Copper Cliff, Ontario
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May 22 - The Canadian Radio-television and Telecommunications Commission issues the first Canadian content rules for television and radio
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The federal voting age is lowered from 21 to 18
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109 people are killed in the crash of an Air Canada DC-8.
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Three Canadians are killed when a ferry collides with a Soviet freighter off British Columbia
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A tornado with winds up to 100 miles per hour hits Sudbury, Ontario. It was one of the worst tornadoes in Canadian history killing 6 people, injuring 200, and causing C$17 million dollars in property damage, all in under five minutes.
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October Crisis: Pierre Trudeau introduces the War Measures Act to deal with the FLQ threat. Trudeau also addresses the nation in a televised speech explaining why he invoked the War Measures Act.
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October 21 – A U.S. Air Force plane makes an emergency landing near Leninakan, Soviet Union. The Soviets release the American officers, including 2 generals,
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Police raid the hiding place of the FLQ's Chenier cell, arresting Bernard Lortie for the kidnapping and murder of Pierre Laporte.
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half a million people die in the cyclone
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October Crisis: The FLQ kidnappers of Pierre Laporte are caught.
