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Notice the timelines we have presented are constructed
to scale to help put geologic time in proportional perspective.
The time man has inhabited the planet is so small, it doesn't
even fit on the our geologic time chart.
Only when we view the Cenozoic Era
alone to we even see the quaternary.
The zoom to the left shows only the Quaternary. The black
line separating the heading and the Holocene Epoch represents
10,000 years, back to the time of the last ice age. Divide that
black line by ten and you have one thousand years, a millenium.
Divide it again to represent a human lifetime generally, at most,
a hundred years.
We hope this helps put geologic time in perspective.
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