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  these events happened every 4 years started 776 bc.
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  the estimated year homer started the epic poems the ODYSSEY
and THE ILIAD - 
  
  this was the first use of greek currency
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  Cleisthenes establishes a new government called democracy
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  The Persian war was a string of battles lasting almost half a century and thousands dead
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  a fierce war between Athens and sparta which lasts 27 years!
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  The end of the bloody war between Sparta and Athens with Sparta ending up on top.
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  this was the year that greek philosopher socrates was poised and killed
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  plato, student of socrates, builds the academy to educate students what are right doings
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  This is when Aristotle begins his teachings for Alexander later known as "Alexander the Great"
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  after a long life in the academy for almost 890 years it was closed and demolished.