40th century BC
From Wikipedia, the free encyclopedia.

(40th century BC - 39th century BC - other centuries)

(5th millennium BC - 4th millennium BC - 3rd millennium BC)

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Events:

Date	Event(s)
?	The City of Ur in Mesopotamia exists

Significant persons:

Inventions, Discoveries, Introductions:

The original article can be found at: http://en.wikipedia.org/wiki/40th_century_BC.
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