Millennium
4th millennium BC
Centuries
32nd century BC 31st century BC 30th century BC
Timelines
32nd century BC 31st century BC 30th century BC
State leaders
32nd century BC 31st century BC 30th century BC
Decades
3090s BC 3080s BC 3070s BC 3060s BC 3050s BC 3040s BC 3030s BC 3020s BC 3010s BC 3000s BC
Categories:
Births – Deaths Establishments – Disestablishments
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The 31st century BC was a century that lasted from the year 3100 BC to 3001 BC.

Events

c. 3100 BC: Polo (Meitei: Sagol Kangjei^[a]) was first played in Manipur state.^[b]^[2]^[3]
c. 3100 BC?: The Anu Ziggurat and White Temple are built in Uruk.
c. 3100 BC?: Predynastic period (Neolithic) ends in Ancient Egypt.
c. 3100 BC?: Early Dynastic (Archaic) period starts in Ancient Egypt.
c. 3100 BC?: The first temple of Tarxien is in use by the Neolithic inhabitants of Malta.^[4]
c. 3100 BC?: First stage in the construction of Stonehenge.^[5]
c. 3100 BC: Oldest adobe building in the Americas was built in Peru.
c. 3100 BC – 2600 BC: Skara Brae, Orkney Islands, Scotland is inhabited.^[6]
c. 3090 BC: Narmer (Menes) unifies Upper and Lower Egypt into one country; he rules this new country from Memphis.
c. 3051 BC: The oldest currently living organism, a Great Basin bristlecone pine, undergoes germination in the White Mountains of California.

Inventions, discoveries, introductions

Drainage and sewage system in the Indus Valley
Dams, canals, stone sculptures using inclined plane and lever in Sumer and the Tigris–Euphrates Valley
Copper was in use, both as tools and weapons.
Senet is one of the oldest-known board games in the world.
c. 3100 BC – Invention of writing in Mesopotamia and Egypt
The Sydney rock engravings date to around 3000 BC (Sydney, Australia).^[7]

^ Thokchom, Khelen (2003-11-28). "Italian seal on Manipur polo origin - Milan-based writer to visit Imphal to collect material for book on game's history". telegraphindia.com. Retrieved 2022-09-18.
^ McFarlan, Donald; McWhirter, Norris (1991). Guinness Book of World Records (1991). Bantam Books. p. 706. ISBN 978-0-553-28954-1. Polo can be traced to origins in Manipur state c. 3100 B.C., when it was played as Sagol Kangjei. Other claims are of it being of Persian origin, having been played as pulu c. 525 B.C.
^ "Guinness Book of World Records 1991 says "Polo can be traced to origins in Manipur state c. 3100 B.C., when it was played as Sagol Kangjei" – SportsTract". Retrieved 2022-09-18.
^ Cilia, Daniel (April 8, 2004). "Tarxien". The Megalithic temples of Malta. http://web.infinito.it/utenti/m/malta_mega_temples/tarxien/tarxien.html. Retrieved on 2007-07-07.
^ "FACTBOX - Stonehenge hosts Summer solstice revellers". Reuters India. June 20, 2010. Retrieved December 30, 2010.
^ Ring, Trudy; Watson, Noelle; Schellinger, Paul (28 October 2013). Northern Europe: International Dictionary of Historic Places. Routledge. p. 686. ISBN 978-1-136-63944-9.
^ "Australia's top 7 Aboriginal rock art sites". australiangeographic.com.au. March 30, 2016. Retrieved December 6, 2023.

31st century BC
33rd century BC ← 32nd century BC ← ↔ → 30th century BC → 29th century BC