20th century BC

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(21st century BC - 20th century BC - 19th century BC - other centuries)

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

Events

• 2064 - 1986 BC -- Twin Dynasty wars in Egypt
• 2000 BC -- Farmers and herders travel south from Ethiopia and settle in Kenya.
• 1991 BC -- Egypt: End of Eleventh Dynasty, start of Twelfth Dynasty
• 1932 BC -- Amorite conquest of Ur
• 1913 - 1903 BC -- Egyptian-Nubian war
• 1900 BC -- Achaean invasions of Greece
• around 1900 BC -- Fall of last Sumerian dynasty

Significant persons

Inventions, discoveries, introductions

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

de:20. Jahrhundert v. Chr. et:20. sajand eKr es:Siglo XX adC fa:سده 20اُم پ.م. fr:XXe siècle av. J.-C. nl:20e eeuw v. Chr. pl:XX wiek p.n.e. ru:XX век до н. э.