When DID "life" begin?

[DemPGH]

Approx. 160,000 years ago or so.

http://humanorigins.si.edu/education/introduction-human-evolution

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Evolution is a slow process, which is why so many people are skeptical of it who do not read scientific/archaeological literature.

The Earth has been here about 4.5 billion years, the first life appearing about 4 billion years ago, give or take. It's a loooooooong time until human beings start showing up in the rock layers.