28th century BC
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(29th century BC - 28th century BC - 27th century BC - other centuries)
(4th millennium BC - 3rd millennium BC - 2nd millennium BC)
Events
- 2775 - 2650 BC - Second Dynasty wars in Egypt
- 2750 BC - End of the Early Dynastic I Period, and the beginning of the Early Dynastic II Period in Mesopotamia.
Significant persons
Inventions, discoveries, introductions
- circa 2750 BC -- Silbury Hill begunpl:XXVIII wiek p.n.e.