Family information unknown

General

Population: Perhaps 14 million*

• Language: Sumerians develop written language (3400 BC)
• Technology: Ox-drawn plow invented (3400 BC)
  Cylinder seals created (3400 BC)

Africa

• Egypt: City of memphis established (3400 BC)

Europe

• Britain: First settlement of Shetland Islands (3400 BC)
• Crete: Beginning of early Minoan age (3400 BC)

Middle East

• Mesopotamia: Ox-drawn plow invented (3400 BC)
  Priests rule Mesopotamian cities (3400 BC)
• Sumer: Sumerians develop written language (3400 BC)
• Uruk (Iraq): Writing develops (3400 BC)