Significant persons:

• Ur-nina[?] first king of Lagash in Mesopotamia

Inventions, Discoveries, Introductions:

• Chinese ideograms
• Drainage and sewage system in India
• Dams, canals, stone sculptures[?] using inclined plane and lever in Sumeria
• Pyramids in Ancient Egypt
• Copper was in use, both as tools and weapons.
• Crude writing existed in Egypt, and cuneiform writing was invented in Mesopotamia.