(3rd millennium BC - 2nd millennium BC - 1st millennium BC)

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Events

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• 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.
• 1932 BC -- Amorite conquest of Ur.
• 1913 – 1903 BC -- Egyptian-Nubian war.
• 1900 BC -- Proto-Greek invasions of Greece.
• around 1900 BC -- Fall of last Sumerian dynasty.

Inventions, discoveries, introductions

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• 1950 BC -- The copper bar cubit of Nippur defines the Sumerian cubit as 51.72 cm

References

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In the Ice Age teaser trailer, the 20th Century Fox logo shows 20th Century Fox B.C.

20th century BC

20 век пр.н.е. | Segle XX aC | 20. Jahrhundert v. Chr. | 20. sajand eKr | Siglo XX adC | سده بیستم (پیش از میلاد) | XXe siècle av. J.-C. | 기원전 20세기 | המאה ה-20 לפנה"ס | 20e eeuw v. Chr. | 紀元前20世紀 | XX wiek p.n.e. | Década de 1920 a.C. | XX век до н. э. | 0. roky 20. storočia pred Kr. | 1901. пне. | 1900-luku eaa | 1900 f.Kr. | 前20世纪