Sumerian Civilization Timeline

A long period of proto-writing occurred between c. 4000 – c. 2500 BC, preceding the world's earliest known texts which come from the Sumerian cities of Uruk and Jemdet Nasr.

The necessity to manage temple accounts with increasingly complex administrative organization led to the development of writing around c. 3500 BC, one of humanity's most consequential inventions.

The world's earliest known texts come from the Sumerian cities of Uruk and Jemdet Nasr, dating to between c. 3350 – c. 2500 BC, following the earlier proto-writing period.

The Eastern Semitic Akkadian language is first attested in proper names of the kings of Kish c. 2800 BC, preserved in later king lists.

Image source: Akkadian language

Several centuries after the invention of cuneiform, the use of writing expanded beyond debt certificates and inventory lists about 2600 BC to messages and mail delivery, history, legend, mathematics, astronomical records and other pursuits.

There are texts written entirely in Old Akkadian dating from c. 2500 BC, showing the language had become fully literate alongside Sumerian.

Use of Old Akkadian was at its peak during the rule of Sargon of Akkad (c. 2334–2279 BC), but even then most administrative tablets continued to be written in Sumerian, the scribes' language.

Although Sumerian written history reaches back to the 27th century BC and before, the historical record remains obscure until Early Dynastic III (c. 23rd century BC), when decipherment becomes easier and contemporary inscriptions can be read.

Akkadian and Sumerian coexisted as vernacular languages for about a thousand years, but by around 1800 BC, Sumerian was becoming more of a literary language familiar mainly only to scholars and scribes.

Image source: Sumerian language

The dynastic period begins c. 2900 BC with a shift from temple rule by council of elders led by a priestly En toward more secular Lugal rulers, including legendary patriarchs Dumuzid, Lugalbanda and Gilgamesh.

Inscriptions describing the reforms of Urukagina of Lagash (c. 2350 BC) say he abolished the former custom of polyandry, prescribing stoning for women who took multiple husbands.

Image source: Urukagina

The Akkadian Empire (c. 2334–2154 BC, middle chronology) was founded by Sargon of Akkad and was the first state to successfully unite larger parts of Mesopotamia in the 23rd century BC. Sumer was conquered around 2270 BC (short chronology).

Image source: Akkadian Empire

The status of women deteriorated in the centuries after 2300 BC, reflecting broader social changes accompanying increasing militarization and centralized rule in Mesopotamia.

Following the death of Akkad's last powerful ruler Shar-Kali-Sharri (c. 2218 – c. 2193 BC), the Gutians gradually took control of Akkadian centers, including the capital Akkad in 2193 BC.

Image source: Gutian rule in Mesopotamia

The eventual fall of the Akkadian Empire in 2154 BC marked the peak of Gutian strength, ushering in the Gutian period of dominance over southern Mesopotamia.

Ur-Nammu (r. 2112–2094 BC) overthrew Utu-hengal's kingdom and established the Third Dynasty of Ur. Under Ur-Nammu and Shulgi (c. 2112 – c. 2004 BC), native Sumerian rule re-emerged for about a century, its power extending as far as southern Assyria.

Image source: Third Dynasty of Ur

Following an Elamite invasion and sack of Ur during the rule of Ibbi-Sin (c. 2028 – c. 2004 BC), Sumer came under Amorite rule, introducing the Middle Bronze Age.

Image source: Ibbi-Sin

The independent Amorite states of the 20th to 18th centuries, summarized as the Dynasty of Isin, ended with the rise of Babylonia under Hammurabi c. 1800 BC; the dynasty persisted until c. 1700 BC when Mesopotamia was united under Babylonian rule.

Image source: Dynasty of Isin

Later rulers who dominated Assyria and Babylonia occasionally assumed the old Sargonic title King of Sumer and Akkad, such as Tukulti-Ninurta I of Assyria after c. 1225 BC.

Image source: Tukulti-Ninurta I

Carnelian beads imported from the Indus Valley were found in the Royal Cemetery at Ur, dating to 2600–2450 BC, evidence of long-distance trade networks reaching South Asia.

Image source: Royal Cemetery at Ur

Objects made with shell species characteristic of the Indus coast, particularly Turbinella pyrum and Pleuroploca trapezium, have been found in Mesopotamian sites dating from around 2500–2000 BC.

Image source: Indo-Mesopotamia relations

Evidence for imports from the Indus to Ur can be found from around 2350 BC, during a flourishing era of exchange when the Indus civilization covered 1.2 million square kilometers.

The interest rate was set at 1/60 a month (one shekel per mina) some time before 2000 BC and remained at that level for about two thousand years.

The first war recorded in any detail was fought between Lagash and Umma in c. 2450 BC, commemorated on the Stele of the Vultures. Nearly constant city-state wars over two millennia drove military technology to a high level.

Image source: Stele of the Vultures

The Gutian period ended with the rise of Utu-hengal of Uruk (c. 2119 – c. 2112 BC), who defeated the last Gutian king Tirigan and briefly established the short-lived 5th dynasty of Uruk.

Image source: Utu-hengal

Jules Oppert was the first scholar to publish the word Sumer, doing so in a lecture delivered on 17 January 1869, establishing the modern identification of the civilization.

The first major excavations of Sumerian cities began in 1877 at Girsu by the French archeologist Ernest de Sarzec, opening the archaeological exploration of ancient Sumer.

Image source: Ernest de Sarzec

Major publications of the early finds included Decouvertes en Chaldée par Ernest de Sarzec by Léon Heuzey in 1884, presenting Sarzec's discoveries at Girsu to the scholarly world.

Image source: Léon Heuzey

John Punnett Peters from the University of Pennsylvania conducted major excavations at Nippur between 1889 and 1900, recovering vast numbers of cuneiform tablets.

Image source: Nippur

German archeologist Robert Koldewey carried out excavations at Shuruppak in 1902–1903, adding another major Sumerian site to the archaeological record.

Image source: Robert Koldewey

François Thureau-Dangin published Les Inscriptions de Sumer et d'Akkad in 1905, a major compilation of the inscriptions recovered from Mesopotamian excavations.

Leonard Woolley discovered the spectacular tombs of the Royal Cemetery of Ur during excavations between 1922 and 1934, uncovering treasures such as the Standard of Ur and evidence of trade with distant lands.

Arno Poebel published Grundzüge der sumerischen Grammatik in 1923, a foundational work on Sumerian grammar that advanced scholarly understanding of the language.

Image source: Arno Poebel