(27th century BC - 26th century BC - 25th century BC - other centuries)

(4th millennium BC - 3rd millennium BC - 2nd millennium BC)

Events

• 2900 - 2334 BC – Mesopotamian wars of the Early Dynastic period.
• 2570 BC – Estimated date of completion of the Great Pyramid of Giza.
• 2500 BC – The legendary line of Sanhuangwudi rulers of China is founded by Huang Di(approximate date).
• 2500 BC – approximate beginning of New Stone Age (Neolithic) in Britain

Significant persons

• Pharaoh Khufu (aka Egypt's Fourth Dynasty ruled from around 2589 to 2566 BC.

Inventions, discoveries, introductions

• 2575 BC – A foot defined as 26.45 cm by Sumerian ruler Gudea of Lagash.
• Rock drawings at Rødøy in Norway show the use of skis.
• Bactrian Camel and Dromedary are domesticated