When you have records dated by the scribes, as well as actual mummies and the carbon-14 dates are not off by hundreds of years but by thousands, you either have to throw away every historical record, or else there was a general failure with carbon-14 dating. Solar intensity, the earth's magnetism, and CO To "face up" to the absolute age problem, scientists devised calibration scales based on tree rings, lake varves, and ice cores.
Oak trees can live for 200-300 years, and they grow a new tree ring every year.
It is better in that an individual bristlecone pine can live for 2,000 years.
Anyway, all these different calibrations from around the world agree with each other within about 5%. 1973, Stuiver & Pearson 1986, Stuiver & Reimer 1986, van der Plicht & Mook 1989 and others).
A more difficult to deal problem with radiocarbon dating came from Egyptian and Mesopotamian artifacts when the dates were already known.
In Egypt, Assyria, Babylonia, and Sumeria, there are "king lists" of who reigned and for how long.
Still others did this in Ireland, and others in England.