28th century BC

(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 begun