Ubaid (jan 1, 6500 BC – dec 31, 3800 BC)

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The Ubaid period (c. 6500–3800 BC) is a prehistoric period of Mesopotamia. The name derives from Tell al-'Ubaid where the earliest large excavation of Ubaid period material was conducted initially in 1919 by Henry Hall and later by Leonard Woolley.

In South Mesopotamia, the period is the earliest known period on the alluvial plain although it is likely earlier periods exist obscured under the alluvium.[4] In the south, it has a very long duration between about 6500 and 3800 BC when it is replaced by the Uruk period.[5]

In Northern Mesopotamia, the period runs only between about 5300 and 4300 BC.[5] It is preceded by the Halaf period and the Halaf-Ubaid Transitional period and succeeded by the Late Chalcolithic period.

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