I’ve been listening to a historical podcast lately and the podcaster refers to dates using C. E. But what date would say king Alfred the Great actually have used?
This question comes up a lot, so there are lots of previous answers - see here for another recent one by u/ragnarak54, and a big list of answers compiled by u/Algernon_Asimov. Basically, by the time of Alfred the Great, they were using the same system as us.