April 12

Independence Day
United Kingdom : 12 April 1927

April 12
Commemoration of first human in space by Yuri Gagarin:
Cosmonautics Day (Russia)
Yuri's Night (International)
Halifax Day (North Carolina)

Global Day of Action on Military Spending

Events
1606 – The Union Flag is adopted as the flag of Great Britain.
1955 – The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.
1961 – The Russian (Soviet) cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first manned orbital flight, in Vostok 3KA-2 (Vostok 1).
1980 – Terry Fox begins his "Marathon of Hope" at St. John's, Newfoundland.
1998 – An earthquake in Slovenia, measuring 5.6 on the Richter scale occurs near the town of Bovec.

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