The US started plans to construct its first nuclear battlefield weapon.
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The French ship named Aurore transported the first African slaves from Senegambia, West Africa, to Louisiana, US.
Alaska Airlines started operating.
The Soviet Union's ill-fated Soyuz 11 mission was launched from the Baikonur Cosmodrome.
Xi'an, China, introduced a pedestrian lane for people who walk while looking at their phones.
Betty White received an Emmy Award for Outstanding Game Show Host.
