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

The 21st century BC was a century which lasted from the year 2100 BC to 2001 BC.

Note: all dates from this long ago should be regarded as either approximate or conjectural; there are no absolutely certain dates, and multiple competing reconstructed chronologies, for this time period.

See: List of sovereign states in the 21st century BC.

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