The doctrine of the Holy Trinity was established after the end of the Council of Nicaea.
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Naturalists Chris Atkins and Michael Taylor discovered the world's tallest tree in Redwood National Park, California.
NASA's Voyager 1 spacecraft entered interstellar space, becoming the first artificial object to do so.
Diego Velázquez de Cuéllar, the conquistador, founded Havana on the southern part of the island.
Uruguay gained independence from Brazil, which is now celebrated as a National Holiday for Uruguayans.
Alicia Thornton became the first British female jockey after taking part in a horse race at York Racecourse in Knavesmire, England.
