(32nd century BC – 31st century BC – 30th century BC – other centuries)

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

Events

• 3102 BC – Astrological evidence places this date to be the birth of Krishna.
• ca. 3100 BC – Narmer, pharaoh, was born.
• ca. 3100 BC – First stage in the construction of Stonehenge, south of actual England.
• ca. 3050 BC – Narmer, pharaoh, was born (another lists).
• 3000 BC – Narmer unifies Upper and Lower Egypt, and a new capital is erected at Memphis.
• 3000 BC – Narmer, pharaoh, died.

Significant persons

• Narmer, first Pharaoh of Egypt
• Hor-Aha, the 2nd Pharaoh of Ancient Egypt

Inventions, discoveries, introductions

• Chinese ideograms
• Drainage and sewage system in India
• Dams, canals, stone sculptures using inclined plane and lever in Sumer
• Pyramids in Ancient Egypt
• Copper was in use, both as tools and weapons.

31st century BC | 4th millennium BC | Centuries

Segle XXXI aC | 31. Jahrhundert v. Chr. | Siglo XXXI adC | XXXIe siècle av. J.-C. | המאה ה-31 לפנה"ס | XXXI wiek p.n.e. | Secolul XXXI î.Hr. | 31. век пне.