(01-02-2025, 05:55 AM)bplus Wrote: Columbus discovered America, at least the Bahamas, Oct 12, 1492.
What day was that?
Pete and probably Eirk's say Wedesday, Macalwen says Friday again. Bplus says best to diccover new lands on Fridays.
BTW Google's AI says it was on a Thursday!
Google must of averaged macalwen's and Pete's answers.
And yet, all the calendars say it was a Monday.. https://jleic-docdb.jlab.org/cgi-bin/pub...2&month=10
Ahh... Here's the reason why.
https://www.dayoftheweek.org/?m=October&...1492&go=Go
Quote:A note to students, teachers, scholars and anyone else passionate about this topic. As stated in the front page, this website is using the Gregorian calendar as the basis for all “day of the week” computation whether or not the Gregorian calendar is relevant for the date in question (October 12, 1492). Educators should point out the primary reason why Pope Gregory XIII introduced a new calendar system in October 1582. That is, to make the computation for the annual date of Easter more accurate since it is the foundation of the Christian faith.
Even with that purpose in mind, the Gregorian calendar too will become out of sync. It has a known approximation error of about one day for every 7,700 years assuming a constant time interval between vernal equinoxes (which is not true). This is better compared to the one day for every 128 years error of the Julian calendar.