18 Dec 2022 10:02 am
"The Christian calendar was created by an Eastern European monk named Dionysius Exiguus. He invented the now commonly used Anno Domini (A.D.) era, which counts years based on the birth of Jesus. He came up with this concept in the year 525, or, 525 years after the birth of Jesus."
https://abcnews.go.com/blogs/headlines/ ... alculation
Eastern Europe, Boris. Could be a relative. Congratulations.