What do the United States and Britain use to date cultural relics?

The dating of cultural relics mainly includes relative dating and absolute dating. Relative dating is to judge the chronological order of relics and remains, and the methods mainly include archaeological stratigraphy and typology. The determination of absolute age depends on various scientific and technical means to determine the specific age of various remains. Commonly used methods include carbon 14 dating, potassium argon dating, thermoluminescence dating, fission track dating and so on. Of course, these methods have their own application scope, advantages and disadvantages, and the age obtained is allowed to have certain errors. It is common to calculate geological age according to the half-life of radioisotopes. Radioisotope 6 14C is called "carbon clock" by archaeologists and can be used to date the death of ancient creatures.