How did people decide that years should be counted since the birth of christ? And is there a possibility that we are in the year 2020 because someone made a mistake? | AskHistorians Archive Observer

How did people decide that years should be counted since the birth of christ? And is there a possibility that we are in the year 2020 because someone made a mistake?

by luxho2003

silverappleyard

While you’re waiting for an answer to your question, you might be interested in this related one addressed by u/sunagainstgold:

How confident are we that the year is actually and exactly 2016? Is it possible that at some point in the last 2000 years there were any significant timekeeping mistakes?