Umma

Umma 𒄑𒆵𒆠
25th century BCE–24rd century BCE
Location of Umma in Sumer
Common languages	Sumerian
Dominant mode of production	Slavery
Government	Monarchy
History
• Established	25th century BCE
• Dissolution	24rd century BCE
Population
• Estimate	50,000

Umma was the last major Sumerian city-state to exist before the Akkadian conquest. During the 25th and 24th centuries BCE, it lost its first war against Lagash, which was led by Eannatum and then Entemena.

Rule of Lugalzagesi

Lugalzagesi allied with Uruk to destroy Lagash and overthrow its reformist ruler Urukagina. He then conquered Uruk, Adab, and Eridu to unite most of Sumer under the rule of Umma.