• foundation of the city of Mari (Syria) (29th century BC )
• Creation of the Kingdom of Elam (Iraq)
• dynasty of Lagash in Sumeria
• golden age for Ur in Mesopotamia. (2474-2398)
• First dynasty of Babylon
• Babylon conquers Sumeria and Elam
• 3rd and 4th dynasties in Egypt.
• Unified Indus Valley Civilisation (2600 BC)
• Indo-Europeans first invade Greece (23rd century BC)

Significant persons:

• Ur-nina[?] king of Lagash (29th century BC )
• Urukagina[?] king of Lagash. great reformer, creates the first known judicial code. (24th century BC
• Lugalsaggizi[?] king of Uruk and Umma[?]. Conquers Lagash (2371-2347)
• Sargon the Great, founder of the empire of Akkad and Sumeria (2371-2316}
• Ur-Nammu[?] founder of the 3th dynasty of Ur (2112-2095)

Inventions, Discoveries, Introductions

• Pottery developed in Americas (30th century BC )
• Domestication of the horse in Central Asia
• Chinese record a comet
• Building of the Great Pyramid of Giza (26th century BC)
• Sails used on ships (20th century BC)
• First ziggurats built in Sumeria

Centuries

• 30th century BC
• 29th century BC
• 28th century BC
• 27th century BC
• 26th century BC
• 25th century BC
• 24th century BC
• 23rd century BC
• 22nd century BC
• 21st century BC