15 авг 322 г. до нашей эры - Aristotle - 322 B.C.
Описание:
 Came up with the theory that all substances were made of Fire, Water, Air, and Earth. He taught his beliefs, and he was so well known for his teachings, most believed him to be right. 
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Дата:
15 авг 322 г. до нашей эры
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 ~ 2350 г назад