40th Century BC
The 40th Century BC consists of the following decades:
3990s BC
3980s BC
3970s BC
3960s BC
3950s BC
3940s BC
3930s BC
3920s BC
3910s BC
3900s BC
Centuries: | 41st Century BC | 40th Century BC | 39th Century BC |
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See Also: Neanderthals Died Out After Magnetic Poles Flipped at roughly this time frame.
page revision: 4, last edited: 21 Feb 2021 07:13