20th century BC

Events

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.