Geologic time scale relative dating dating english lady in spain

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In the 1700's belief in a 6000 year old Earth crumbled.

Attempts to calculate the age of the Earth from physical considerations yielded estimates that ranged from 75,000 years (Buffon, 1774) to several billion years (de Maillet, Buffon).

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By the early 1800's it was generally accepted that the Earth had a long history. The uniformatarians (Hutton 1788, Lyell 1830) pictured the Earth as being indefinitely old.

The second is that the rates of the physical processes in question are variable and knowledge of them was incomplete.

In the late 1800's physicists, armed with a more advanced physics than that available to Descartes, made new estimates of the age of the Earth and the Sun.

The rise of science produced a major change in attitude.

In the pre-scientific world view the issue of the age of the Earth was a theological question.

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