Bolivia gained independence from Peru.
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NASA's Curiosity rover landed on Mars' Aeolis Palus plain.
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.
World Resources Institute reported that a quarter of the world's population is running out of water.
Flammable vapor caught fire at the Chevron Refinery in Richmond, California.
