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Hurricane Katrina.
The devastating and terrible damage on the Japanese fleet that proved irreparable. They never really were able to recover from it.
They proved they had good moral character.
the turks
King Arthur
Before the 18th century, plants and animals were classified by physical appearance and nothing else. This proved to be too simplistic and during the 18th century, the classification system was expanded.
william herschel
polluted air and drinking water
A:Lorenzo Valla proved the Donation of Constantine, by which Emperor Constantine supposedly granted great wealth and power to Pope Sylvester and his successors, to be a forgery in the fifteenth century.
Records of Ghana started about in the 11th century, though it was proved that Ghana existed before that time
Pi is an irrational number. Johann Heinrich Lambert proved that in the late 18th Century.
His suggestion was that the Sun is at the centre of the solar system. It was proved in the 18th century after Isaac Newton's laws of motion and the law of gravity were applied to demonstrate that the Sun is far more massive than all the planets.