At just 30 years old, golf professional Tiger Woods won the 50th PGA, making him the youngest person ever to win a PGA.
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World Resources Institute reported that a quarter of the world's population is running out of water.
Mount Tongariro in New Zealand erupted for the first time in 115 years.
A team of NASA scientists declared that the Martian ALH 84001 meteorite might contain traces of alien life.
Portugal and the Dutch Republic signed the Treaty of The Hague.
Norwich University was founded in Vermont.