We have no credible proof that Karl the Great existed or that the middle ages weren't basically made up to cover a 300 year jump in calendar systems but sure, we can be sure of this discovery about this detail thousands of years ago.

Obviously. Must be true.

nostr:nevent1qqswtujnpgfr55wr98lufmw853pvndk208uepngp5l2az7rk45cg70qpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtczyz0wyuk3k8wg4gwcp0xpdelf9xpjr7zjwydu8392k2p8qhav8haxzqcyqqqqqqgsyk764

This seems fake but wouldn’t surprise me if the NYT actually wrote this