21st century BC

(4th millennium BC - 3rd millennium BC - 2nd millennium BC)

• 2205 BC -- foundation of the Xia Dynasty in China
• 2130 - 2080 BC -- Ninth Dynasty wars in Egypt
• 2112 - 2095 BC -- Sumerian campaigns of Ur-Nammu
• 2064 - 1986 BC -- Twin Dynasty wars in Egypt
• 2049 BC - Oak trees for Seahenge felled.
• 2040 BC -- End of Tenth Dynasty[?]
• 2034 - 2004 BC -- Ur-Amorite[?] wars
• 2004 BC -- Elamite destruction of Ur
• 2000 BC -- The town of Mantua was presumedly founded

Significant persons:

• According to Hindu tradition, lifetime of Rama, the 7th avatar of Vishnu

Inventions, Discoveries, Introductions:

• 2000 BC -- First written accounts of Schizophrenia.
• 2037 BC -- Emperor Shen Nong[?] makes first (perhaps mythical) tea drink by boiling fresh leaves