Innocent Bridget Bishop was the first person to be trialed and hung for witchcraft in Massachusetts, US.
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In London, the Millenium Bridge closed for safety checks following large crowds, which caused the bridge to start swaying.
Swedish authorities finally closed a 34-year-old inquiry into the murder of their prime minister.
Italy declared war on France and Britain.
NASA's Explorer 49 was launched into Earth's orbit to research long-range radio waves within the Milky Way.
President Franklin Roosevelt became the first president to travel abroad during war.