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  In 270 BC Ashoka, Chandragupta's grandson, took power from him. By that time, the Mauryan Empire had stretched southward across the Deccan Plateau
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  In 320 BC Chandragupta Mautya seized power in India
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  Darius Codomannus becomes king of Persia
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  Xerxes II becomes king of Persia
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  By the sixth century BC Sanskrit was in written form
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  In 500 BC the Persian Empire expanded from the Meediterranean Sea to the Indus River Valley
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  Zarathustra forms a new religion in Persia
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  the Medes capture Assyrian cities
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  The Persians defeat the Scythians
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  In 1500 BC the aryans arive to the Indus River River Valley.
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  in 2000 BC Chess was developed in Persia
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  I used my book and http://www.scaruffi.com/politics/persians.html
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  In about 185 BC the Mauryan Empire came to an end
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  Cyrus takes over Persia
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  Darius dies and Xerxes becomes king of Persia