21st century BC

(22nd century BC – 21st century BC – 20th century BC – other centuries)

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

Events

• 2130 – 2080 BC — Ninth Dynasty wars in Egypt
• 2112 – 2095 BC — Sumerian campaigns of Ur-Nammu
• 2091 — beginning of the Patriarchal Age is traditionally set in this year
• 2064 – 1986 BC — Twin Dynasty wars in Egypt
• 2049 BC – Oak trees for Seahenge felled.
• 2040 BC — End of Tenth dynasty of Egypt, start of Eleventh Dynasty
• 2034 – 2004 BC — Ur-Amorite wars
• 2004 BC — Elamite destruction of Ur
• 2000 BC — The town of Mantua was presumedly founded
• 2000 BC — Stonehenge is believed to have been completed

Significant persons

• Ur-Nammu, 3rd dynasty of Ur
• Shulgi of Urim
• 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