Ubaid period

Ubaid period

Geographical range	Mesopotamia
Period	Chalcolithic
Dates	c. 6500 — c. 3800 BCE.
Type site	Tell al-`Ubaid
Major sites	Eridu
Preceded by	Halaf-Ubaid Transitional period, Hassuna culture, Samarra culture
Followed by	Uruk period

The Neolithic This box:
↑ Mesolithic
Fertile Crescent Heavy Neolithic Shepherd Neolithic Trihedral Neolithic Pre-Pottery (A, B) Qaraoun culture Tahunian culture Yarmukian Culture Halaf culture Halaf-Ubaid Transitional period Ubaid culture Byblos Jericho Tell Aswad Çatalhöyük Jarmo Europe Arzachena culture Boian culture Butmir culture Cardium Pottery culture Cernavodă culture Coțofeni culture Cucuteni-Trypillian culture Dudeşti culture Gorneşti culture Gumelniţa–Karanovo culture Hamangia culture Khirokitia Linear Pottery culture Malta Temples Ozieri culture Petreşti culture Shulaveri-Shomu culture Sesklo culture Tisza culture Tiszapolgár culture Usatovo culture Varna culture Vinča culture Vučedol culture Neolithic Transylvania Neolithic Southeastern Europe China Peiligang culture Pengtoushan culture Beixin culture Cishan culture Dadiwan culture Houli culture Xinglongwa culture Xinle culture Zhaobaogou culture Hemudu culture Daxi culture Majiabang culture Yangshao culture Hongshan culture Dawenkou culture Songze culture Liangzhu culture Majiayao culture Qujialing culture Longshan culture Baodun culture Shijiahe culture Yueshi culture Tibet South Asia Mehrgarh Bhirrana Neolithic Philippines Jade culture
farming, animal husbandry pottery, metallurgy, wheel circular ditches, henges, megaliths Neolithic religion
↓ Chalcolithic

farming, animal husbandry
pottery, metallurgy, wheel
circular ditches, henges, megaliths
Neolithic religion

The Ubaid period (ca. 6500 to 3800 BCE) 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 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. In the south it has a very long duration between about 6500 and 3800 BCE when it is replaced by the Uruk period

In North Mesopotamia the period runs only between about 5300 and 4300 BCE. It is preceded by the Halaf period and the Halaf-Ubaid Transitional period and succeeded by the Late Chalcolithic period.

The term Ubaid period was coined at a conference in Baghdad in 1930, where at the same time the Jemdet Nasr and Uruk periods were defined.

The Ubaid period is divided into three principal phases:

Spreading from Eridu the Ubaid culture extended from the Middle of the Tigris and Euphrates to the shores of the Persian Gulf, and then spread down past Bahrain to the copper deposits at Oman. The archaeological record shows that Arabian Bifacial/Ubaid period came to an abrupt end in eastern Arabia and the Oman peninsula at 3800 BCE, just after the phase of lake lowering and onset of dune reactivation. At this time, increased aridity led to an end in semi-desert nomadism, and there is no evidence of human presence in the area for approximately 1000 years, the so-called "Dark Millennium". That might be due to the 5.9 kiloyear event at the end of the Older Peron.

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