Early human carbon dating

It’s possible to measure the ratios of uranium-238/uranium-234 and thorium-230/uranium-238, the latter of which depends on the former.

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Like we recognise art as quintessentially human, we also consider tool use and technological progress to be defining for our species, and it was as important to ancient humans as it is to us.However, to discover how tool use relates to human evolution, scientists must be able to date it.Kalambo Falls is an archaeological site on the border of Zambia and Tanzania with a magnificent tool record.A huge development in the story of humans is ‘modern’ behaviour, or acting like a human as opposed to acting like a two-legged ape – but it’s hard to date.For example, it’s difficult to say exactly when people started to think abstract thoughts or speak to communicate.