Category:21st millennium BC

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Millennia: BC 510 500 430 360 300 220 160 100 90 73 63 60 50 40 30 25 23 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 • CE 1 2 3 4

The 21st millennium BC is commonly called: 21000 BP or 21k years ago

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