20th century BC

Map of the world in 2000 BC

Events

The pyramid ruin of Amenemhet I at Lisht. He was the founder of the Twelfth Dynasty of Egypt

• 2000 BC — Arrival of the ancestors of the Latins in Italy.
• 2000 BC — Town of Mantua is presumably founded.
• 2000 BC — Stonehenge is believed to have been completed.
• 2000 BC — Farmers and herders travel south from Ethiopia and settle in Kenya.
• 2000 BC — Horses are tamed and used for transport.
• c. 2000 BC — Decline of Harappan civilization starts.
• c. 2000 BC - Bronze Age starts in north Ancient China.
• 2070–1600 BC — Xia Dynasty in China, Olmec civilization (Mesoamerica).
• 2064–1986 BC — Twin Dynasty wars in Egypt.
• 1991 BC — Egypt: Pharaoh Mentuhotep IV died. End of Eleventh Dynasty. Pharaoh Amenemhat I started to rule. Start of Twelfth Dynasty.
• c. 1985 BC–1795 BC — Rock-cut tombs at Beni Hasan were made. Twelfth Dynasty.
• c. 1985 BC–1795 BC — "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.
• 1953 BC, February 27 - A very close alignment of the naked-eye planets takes place in which these planets are together in a span of 4.3 degrees.
• 1932 BC — Amorite conquest of Ur.
• c. 1928–1895 BC — "Harvest scene", tempera fascimile by Nina de Garis Davies of wall painting in the tomb of Khnumhotep, Beni Hasan. Twelfth Dynasty.
• 1913–1903 BC — Egyptian-Nubian war.

Births

• 1973 BC — Reu, son of Peleg, according to the Hebrew Calendar
• 1941 BC — Serug, son of Reu, according to the Hebrew Calendar
• 1911 BC — Nahor, son of Serug, according to the Hebrew Calendar

Inventions, discoveries, introductions

• 2000 BC — First written accounts of Schizophrenia
• 1950 BC — The copper bar cubit of Nippur defines the Sumerian cubit as 51.72 cm

Decades and years