Queen Anne became Queen of England after King William III died.
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Many volcanoes were discovered on one of planet Jupiter's moons called Io.
The hashtag #5secondsofsummer trended worldwide for the first time on Twitter.
The world's richest tennis player, Martina Navratilova, became the first to make $10 million.
The Zodiac Killer shot his first victim Mario Orosco.
The first International Women's Day was celebrated.
