21st millennium BC

Summary

21st millennium BC is a millennium^[1].

Key Facts

• 21st millennium BC's instance of is recorded as millennium^[2].
• 21st millennium BC's follows is recorded as 22nd millennium BC^[3].
• 21st millennium BC's followed by is recorded as 20th millennium BC^[4].
• 21st millennium BC's point in time is recorded as -21000-01-01T00:00:00Z^[5].
• 21st millennium BC's Google Knowledge Graph ID is recorded as /g/122zk1vy^[6].