Yes I'm aware of some of the dating methods but not in detail. I'll say this. When we want to know the age of anything the most accurate way to tell the age is to get written records and eyewitness accounts if possible. Relying on lab tests only is very faulty since we don't know if the chemical makeup of the atmosphere has always been the same. Think about your phone or any electronic device you may have. We don't run a chemical tests on them to see how old those devices are. We simply have written records and people's accounts of using those devices during a certain time period. That is much more accurate to know the age of the devices. Not testing them in a lab somewhere.

Humans have always written things down for historical records.