Dating in the dark australia videos tips on dating chinese men
The isotope of Potassium-40, which has a half-life of 1.25 Billion years, can be used for such long measurements.
Another absolute dating method is thermoluminescence, which dates the last time an item was heated.
Based on a discipline of geology called stratigraphy, rock layers are used to decipher the sequence of historical geological events.
They are famous for their drawn-out battle in the Flavian Amphitheater of Rome (better known as the Colosseum).