21st century BC

Millennium:	3rd millennium BC
Centuries:	22nd century BC · 21st century BC · 20th century BC
Decades:	2090s BC 2080s BC 2070s BC 2060s BC 2050s BC 2040s BC 2030s BC 2020s BC 2010s BC 2000s BC
Categories:	Births – Deaths Establishments – Disestablishments

Events

Ur seen across the Royal tombs, with the Great Ziggurat in the background, January 17 2004

• 2100 BC — Beginning of the Xia Dynasty, the first dynasty and government system in China.
• c. 2100–2050 BC — Nanna Ziggurat, Ur (modern Muqaiyir, Iraq) is built.
• 2091 BC — Beginning of the mythological Patriarchal Age is traditionally set in this year.
• 2080 BC — Ninth Dynasty wars in Egypt.
• 2080 BC — First Intermediate Period of Egypt ends. Middle Kingdom starts in Ancient Egypt.
• 2071 BC — Magh Ithe, first recorded battle in Ireland myths.
• 2070 BC (disputable) — Yu the Great set up the Xia Dynasty,which isn't verified by archeological findings, some propose the Erlitou culture.
• 2064–1986 BC — Twin Dynasty wars in Egypt.
• c. 2055 BC — End of First Intermediate Period of Egypt (another date is 2040 BC).
• c. 2055 BC — Middle Kingdom starts in Ancient Egypt (other date is 2040 BC).
• c. 2055 BC — Prince Mentuhotep II from Thebes manages to reunite Ancient Egypt (other date is 2040 BC).
• c. 2055 BC — Pharaoh Mentuhotep II starts to rule in Ancient Egypt
• 2049 BC — Oak trees for Seahenge felled.
• c. 2040 BC — End of First Intermediate Period of Egypt. Start of Middle Kingdom. 11th–14th Dynasties.
• 2040 BC — Pharaoh Merykare died. End of Tenth dynasty of Egypt. Pharaoh Mentuhotep II started to rule. Start of Eleventh Dynasty.
• 2034–2004 BC — Ur-Amorite wars.
• c. 2009–1997 BC — Funerary temple of Mentuhotep III was built. Eleventh Dynasty.
• 2004 BC — Elamite destruction of Ur.
• c. 2004 BC — Pharaoh Mentuhotep II, Eleventh dynasty of Egypt dies.

Significant persons

• Ur-Nammu, 3rd dynasty of Ur
• Shulgi of Urim
• Abraham (perhaps, other datings include 19th century BC, 17th century BC, 16th Century BC, and 15th Century BC)
• According to Hindu tradition, lifetime of Rama, the 7th avatar of Vishnu

Births

• Shelah, son of Arpachshad, (2067–1634 BC) according to the Hebrew Calendar
• Eber, son of Shelah, (2037–1573 BC) according to the Hebrew Calendar
• Peleg, son of Eber, (2003–1764 BC) according to the Hebrew Calendar

Inventions, discoveries, introductions

• 2100 BC — Earliest extant law code in Mesopotamia, the Code of Ur-Nammu
• 2037 BC — Emperor Shen Nong makes first (perhaps mythical) tea drink by boiling fresh leaves

Decades and years

[[::Decades|Decades]] and [[::Years|Years]]

21st century BC

[[::23rd century BC|23rd century BC]] ←[[::22nd century BC|22nd century BC]] ← ↔ →[[::20th century BC|20th century BC]]→[[::19th century BC|19th century BC]]

[[::2109–2100 BC|2109–2100 BC ]]	[[::2109 BC|2109 BC ]]	[[::2108 BC|2108 BC ]]	[[::2107 BC|2107 BC ]]	[[::2106 BC|2106 BC ]]	[[::2105 BC|2105 BC ]]	[[::2104 BC|2104 BC ]]	[[::2103 BC|2103 BC ]]	[[::2102 BC|2102 BC ]]	[[::2101 BC|2101 BC ]]	[[::2100 BC|2100 BC ]]
[[::2090s BC|2090s BC ]]	[[::2099 BC|2099 BC ]]	[[::2098 BC|2098 BC ]]	[[::2097 BC|2097 BC ]]	[[::2096 BC|2096 BC ]]	[[::2095 BC|2095 BC ]]	[[::2094 BC|2094 BC ]]	[[::2093 BC|2093 BC ]]	[[::2092 BC|2092 BC ]]	[[::2091 BC|2091 BC ]]	[[::2090 BC|2090 BC ]]
[[::2080s BC|2080s BC ]]	[[::2089 BC|2089 BC ]]	[[::2088 BC|2088 BC ]]	[[::2087 BC|2087 BC ]]	[[::2086 BC|2086 BC ]]	[[::2085 BC|2085 BC ]]	[[::2084 BC|2084 BC ]]	[[::2083 BC|2083 BC ]]	[[::2082 BC|2082 BC ]]	[[::2081 BC|2081 BC ]]	[[::2080 BC|2080 BC ]]
[[::2070s BC|2070s BC ]]	[[::2079 BC|2079 BC ]]	[[::2078 BC|2078 BC ]]	[[::2077 BC|2077 BC ]]	[[::2076 BC|2076 BC ]]	[[::2075 BC|2075 BC ]]	[[::2074 BC|2074 BC ]]	[[::2073 BC|2073 BC ]]	[[::2072 BC|2072 BC ]]	[[::2071 BC|2071 BC ]]	[[::2070 BC|2070 BC ]]
[[::2060s BC|2060s BC ]]	[[::2069 BC|2069 BC ]]	[[::2068 BC|2068 BC ]]	[[::2067 BC|2067 BC ]]	[[::2066 BC|2066 BC ]]	[[::2065 BC|2065 BC ]]	[[::2064 BC|2064 BC ]]	[[::2063 BC|2063 BC ]]	[[::2062 BC|2062 BC ]]	[[::2061 BC|2061 BC ]]	[[::2060 BC|2060 BC ]]
[[::2050s BC|2050s BC ]]	[[::2059 BC|2059 BC ]]	[[::2058 BC|2058 BC ]]	[[::2057 BC|2057 BC ]]	[[::2056 BC|2056 BC ]]	[[::2055 BC|2055 BC ]]	[[::2054 BC|2054 BC ]]	[[::2053 BC|2053 BC ]]	[[::2052 BC|2052 BC ]]	[[::2051 BC|2051 BC ]]	[[::2050 BC|2050 BC ]]
[[::2040s BC|2040s BC ]]	[[::2049 BC|2049 BC ]]	[[::2048 BC|2048 BC ]]	[[::2047 BC|2047 BC ]]	[[::2046 BC|2046 BC ]]	[[::2045 BC|2045 BC ]]	[[::2044 BC|2044 BC ]]	[[::2043 BC|2043 BC ]]	[[::2042 BC|2042 BC ]]	[[::2041 BC|2041 BC ]]	[[::2040 BC|2040 BC ]]
[[::2030s BC|2030s BC ]]	[[::2039 BC|2039 BC ]]	[[::2038 BC|2038 BC ]]	[[::2037 BC|2037 BC ]]	[[::2036 BC|2036 BC ]]	[[::2035 BC|2035 BC ]]	[[::2034 BC|2034 BC ]]	[[::2033 BC|2033 BC ]]	[[::2032 BC|2032 BC ]]	[[::2031 BC|2031 BC ]]	[[::2030 BC|2030 BC ]]
[[::2020s BC|2020s BC ]]	[[::2029 BC|2029 BC ]]	[[::2028 BC|2028 BC ]]	[[::2027 BC|2027 BC ]]	[[::2026 BC|2026 BC ]]	[[::2025 BC|2025 BC ]]	[[::2024 BC|2024 BC ]]	[[::2023 BC|2023 BC ]]	[[::2022 BC|2022 BC ]]	[[::2021 BC|2021 BC ]]	[[::2020 BC|2020 BC ]]
[[::2010s BC|2010s BC ]]	[[::2019 BC|2019 BC ]]	[[::2018 BC|2018 BC ]]	[[::2017 BC|2017 BC ]]	[[::2016 BC|2016 BC ]]	[[::2015 BC|2015 BC ]]	[[::2014 BC|2014 BC ]]	[[::2013 BC|2013 BC ]]	[[::2012 BC|2012 BC ]]	[[::2011 BC|2011 BC ]]	[[::2010 BC|2010 BC ]]
[[::2009–2000 BC|2009–2000 BC ]]	[[::2009 BC|2009 BC ]]	[[::2008 BC|2008 BC ]]	[[::2007 BC|2007 BC ]]	[[::2006 BC|2006 BC ]]	[[::2005 BC|2005 BC ]]	[[::2004 BC|2004 BC ]]	[[::2003 BC|2003 BC ]]	[[::2002 BC|2002 BC ]]	[[::2001 BC|2001 BC ]]	[[::2000 BC|2000 BC ]]
[[::1990s BC|1990s BC ]]	[[::1999 BC|1999 BC ]]	[[::1998 BC|1998 BC ]]	[[::1997 BC|1997 BC ]]	[[::1996 BC|1996 BC ]]	[[::1995 BC|1995 BC ]]	[[::1994 BC|1994 BC ]]	[[::1993 BC|1993 BC ]]	[[::1992 BC|1992 BC ]]	[[::1991 BC|1991 BC ]]	[[::1990 BC|1990 BC ]]

[[::Centuries|Centuries]] and [[::Millennia|Millennia]]

Millennium	Century
Before Christ / Before Common Era (BC/BCE)
[[::4th millennium BC|4th]]:	[[::40th century BC|40th]]	[[::39th century BC|39th]]	[[::38th century BC|38th]]	[[::37th century BC|37th]]	[[::36th century BC|36th]]	[[::35th century BC|35th]]	[[::34th century BC|34th]]	[[::33rd century BC|33rd]]	[[::32nd century BC|32nd]]	[[::31st century BC|31st]]
[[::3rd millennium BC|3rd]]:	[[::30th century BC|30th]]	[[::29th century BC|29th]]	[[::28th century BC|28th]]	[[::27th century BC|27th]]	[[::26th century BC|26th]]	[[::25th century BC|25th]]	[[::24th century BC|24th]]	[[::23rd century BC|23rd]]	[[::22nd century BC|22nd]]	[[::21st century BC|21st]]
[[::2nd millennium BC|2nd]]:	[[::20th century BC|20th]]	[[::19th century BC|19th]]	[[::18th century BC|18th]]	[[::17th century BC|17th]]	[[::16th century BC|16th]]	[[::15th century BC|15th]]	[[::14th century BC|14th]]	[[::13th century BC|13th]]	[[::12th century BC|12th]]	[[::11th century BC|11th]]
[[::1st millennium BC|1st]]:	[[::10th century BC|10th]]	[[::9th century BC|9th]]	[[::8th century BC|8th]]	[[::7th century BC|7th]]	[[::6th century BC|6th]]	[[::5th century BC|5th]]	[[::4th century BC|4th]]	[[::3rd century BC|3rd]]	[[::2nd century BC|2nd]]	[[::1st century BC|1st]]
Anno Domini / Common Era (AD/CE)
[[::1st millennium|1st]]:	[[::1st century|1st]]	[[::2nd century|2nd]]	[[::3rd century|3rd]]	[[::4th century|4th]]	[[::5th century|5th]]	[[::6th century|6th]]	[[::7th century|7th]]	[[::8th century|8th]]	[[::9th century|9th]]	[[::10th century|10th]]
[[::2nd millennium|2nd]]:	[[::11th century|11th]]	[[::12th century|12th]]	[[::13th century|13th]]	[[::14th century|14th]]	[[::15th century|15th]]	[[::16th century|16th]]	[[::17th century|17th]]	[[::18th century|18th]]	[[::19th century|19th]]	[[::20th century|20th]]
[[::3rd millennium|3rd]]:	[[::21st century|21st]]	[[::22nd century|22nd]]	[[::23rd century|23rd]]	[[::24th century|24th]]	[[::25th century|25th]]	[[::26th century|26th]]	[[::27th century|27th]]	[[::28th century|28th]]	[[::29th century|29th]]	[[::30th century|30th]]
[[::4th millennium|4th]]:	[[::31st century|31st]]