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3h 45min, jul 3, 1070 y BC - Great Serpent Mound

Description:

1070 CE
Earthwork/effigy mound
Adams County, Southern Ohio
Used as a calender.

Added to timeline:

16 Nov 2017
0
0
256
New timeline

Date:

3h 45min, jul 3, 1070 y BC
Now
~ 3091 years ago

Images:

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