40th century BC

Cultures

Near East

• In Predynastic Egypt, the El Omari culture arose during this period
• Start of the Naqada culture in Egypt
• In Mesopotamia, the Uruk period began

Europe

Main article: Neolithic Europe

• The Linear Pottery culture gives way to the Funnelbeaker culture in the north
• Cucuteni–Trypillian culture
• Pit–Comb Ware culture
• In the Pontic steppe, the Dnieper–Donets and Sredny Stog cultures flourish, according to the Kurgan hypothesis associated with Proto-Indo-Europeans

East Asia

• Liangzhu culture
• Early Jōmon period begins on the islands of Japan

Events and innovations

• 5.9-kiloyear event
• , more than 100 dwellings surrounding a community center, a cemetery and a kiln are built in Jiangzhai, near modern Xi'an, China
• Susa is a center of pottery production; c. potter's wheel in Mesopotamia
• Approximate time of the construction of the Merheleva Ridge complex
• Megalithic monuments are constructed in Brittany (Carnac), Portugal (Lisbon), central and southern France, Corsica and Great Britain
• Metallurgy during the Copper Age in Europe
• Domestication of the horse
• Plough in use
• Clay pots and vats discovered at a sprawling cave system in southern Armenia near the border with Iran shows signs of an organized effort to press and distill grapes

Calendars

• Bede began his history of the world with 3952 BC
• In their ceremonial or commemorative proceedings, Freemasons add 4,000 years to the current Anno Domini calendar year and append Anno Lucis ("Year of Light") to the year (i.e., 2020 AD = 6020 AL). This alternative calendar era, which would designate 4000 BC as "year zero", was created in the 18th century (58th century AL) in deference to the Hebrew calendar's Anno mundi and other ideas regarding the year of creation at the time.

References

References

1. (1996). "The Oxford Companion to Archaeology". Oxford University Press.
2. "Naqadan Culture".
3. "Uruk".
4. Federico Lara Peinado, Universidad Complutense de Madrid: "La Civilización Sumeria". ''Historia'' 16, 1999.
5. "Scientists discover 'oldest' winery in Armenian cave".