Philips demonstrated the compact disc publicly for the first time.
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The first official rock festival took place in the Soviet Union.
The world's richest tennis player, Martina Navratilova, became the first to make $10 million.
Volkswagen's iconic Type 2 Kombi first began production.
Many volcanoes were discovered on one of planet Jupiter's moons called Io.
Queen Anne became Queen of England after King William III died.
