Family information unknown

General

Population: Perhaps 27 million*

• Cities: Defensive walls built around cities (2900 BC)
• Languages: Cuneiform begins (2900 BC)
  Egyptions simplify heiroglyphics to Hieratic Script (2900 BC)> Cuneiform in Sumer (2900 BC)
• Mathematics: Numbers develop in Sumer (2900 BC)
• Technology: Tin and bronze used (2900 BC)
  Cord-impressed pottery developed in Europe (2900 BC)

Africa

• Egypt: Egyptian physician Imhotep begins to treat disease (2980 BC)
  Traditional Egyptian date of 1st Dynasty (2920 BC)
  Heiroglyphics simplified (2900 BC)

Middle East

• Sumer: Cuneiform and numbers develop (2900 BC)
• Turkey: First city at Troy built (2900 BC)