Nazi forces moved on Britain for the first time after attacking shipping containers in the English Channel.
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The Battle of Dyrrhachium occurred.
Aviator Howard Hughes started his around-the-world flight.
Erden Eruç began the world's first successful solo human-powered circumnavigation of the world.
NASA launched Telstar 1, the world's first active communications satellite.
West Virginia had its hottest day on record at a sweltering 112°F (44°C).