Traces of sun storms locked in tree rings could confirm ancient historical dates

A new science, astrochronology, could finally fix precise dates for key events in prehistory using traces of violent solar storms preserved by trees
Read more: https://www.theguardian.com/science/2016/aug/17/traces-of-sun-storms-locked-in-tree-rings-could-confirm-ancient-historical-dates-astrochronology?source=Snapzu