NASA’s Voyager 1 spacecraft entered interstellar space, becoming the first artificial object to do so.
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Uruguay gained independence from Brazil, which is now celebrated as a National Holiday for Uruguayans.
Naturalists Chris Atkins and Michael Taylor discovered the world's tallest tree in Redwood National Park, California.
Captain James Cook set sail on his first voyage from Plymouth, heading for the Pacific Ocean.
Astronomer Galileo demonstrated one of his earlier telescopes to Venetian lawmakers.
Alicia Thornton became the first British female jockey after taking part in a horse race at York Racecourse in Knavesmire, England.
