:20th century BC

File:World in 2000 BC.svg

Image:AmenemhetIPyramid.jpg at Lisht. He was the founder of the Twelfth Dynasty of Egypt]]

• c. 2000 BC:
• Farmers and herders traveled south from Ethiopia and settled in Kenya.
• Dawn of the Capacha Culture in modern-day Colima, Mexico.
• Humans settle in Matanchén, modern day Nayarit, Mexico
• Arrival of the ancestors of the Latins in Italy.
• Town of Mantua was founded.
• First of the Minoan palaces on Crete. Site of palace complex Knossos started to become occupied.
• Bronze Age began in north Ancient China.
• Middle Jōmon period ended in Japan.
• Decline of Harappan civilization began.
• The Harappa Torso was sculpted by a member of the Indus Valley culture.The Harappa Torso is now kept at the National Museum in New Delhi, India.
• Vessel, from Asahi Mound, Toyama Prefecture, was made. Jōmon period. It is now kept at Collection of Tokyo University.
• Dogū, from Kurokoma, Yamanashi Prefecture, was made. Jōmon period. It is now kept at Tokyo National Museum.
• Stonehenge construction largely completed.
• Dawn of the Lal-lo and Gattaran Shell Middens pilings in the Philippines.
• Horses were tamed and used for transport.
• The last woolly mammoth goes extinct on Wrangel island.
• c. 2000 BC – 1900 BC: the "Priest-king torso" was sculpted at Mohenjo-Daro, part of the Indus Valley civilization.The "Priest-king torso" is now kept at the National Museum of Pakistan, in Karachi.
• c. 1995 BC: Pharaoh Mentuhotep II, Eleventh dynasty of Egypt dies.
• c. 1995 BC: Egypt: Pharaoh Mentuhotep IV died. End of Eleventh Dynasty. Pharaoh Amenemhat I started to rule. Start of Twelfth Dynasty.
• c. 1985 BC: Political authority became less centralized in Ancient Egypt.
• c. 1985 BC – 1795 BC:
• Rock-cut tombs at Beni Hasan were made. Twelfth Dynasty.
• "Hippopotamus", from the tomb of Senbi (governor) (Tomb B.3) at Meir was made. Twelfth Dynasty. It is now in the Metropolitan Museum of Art, New York.
• 1974 BC: Erishum I became the thirty-third ruler of Assyria.
• 1953 BC: Senusret I launches a military campaign against Lower Nubia and conquers the region down to the Second Cataract.
• February 27, 1953 BC: A very close alignment of the naked-eye planets took place in which these planets are together in a span of 4.3 degrees.
• March 5, 1953 BC: A computer calculated alignment of the naked-eye planets took place in a new moon, and in spring season, and is believed by researchers from NASA, to be the starting event for the Chinese calendar, as they followed descriptions from a 1st Century B.C. Chinese passage "Hong Fan Zhuan" by 'Liu Xiang', to search for this astronomical event being described to have happened about 2000 BC at Pegasus constellation (Yingshi).
• c. 1942 BC: The so-called king of Leubingen (today part of Sömmerda) was buried in a large barrow within a {{convert|66|ft|m|adj=mid|-wide}} stone cairn inside a ring ditch.
• 1932 BC: Amorite conquest of Ur.
• c. 1928 BC – 1895 BC: "Harvest scene", tempera facsimile by Nina de Garis Davies of wall painting in the tomb of Khnumhotep II, Beni Hasan. Twelfth Dynasty.
• c. 1920 BC: Jishi Gorge flood. It may have sparked the beginning of the first Chinese dynasty (Xia, Erlitou culture) {{Cite web | url=https://www.science.org/content/article/massive-flood-may-have-led-chinas-earliest-empire | title=Massive flood may have led to China's earliest empire| date=2016-08-04}}
• 1913 BC – 1903 BC: Egyptian-Nubian war.
• c. 1900 BC: Shalim-ahum and his son Ilu-shuma began to rule the city of Assur at around this time.

• c. 2000 BC: Glass appears.
• 2000 BC: In the Old Assyrian Empire, the Sumerian cuneiform had evolved into Old Assyrian cuneiform, with many modifications to Sumerian orthography.
• c. 1900 BC: Cacao is domesticated by the Mokaya in Guatemala.{{cite news | url = https://www.science.org/content/article/earliest-evidence-chocolate-north-america | first = Traci | last = Watson | title = Earliest Evidence of Chocolate in North America | date = 22 January 2013 | work = Science | access-date = 3 March 2014}}

{{Main|List of sovereign states in the 20th century BC}}

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