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Re:Calculate the day of the week for any date in your head by netsharc on Wednesday January 01, 2020 @02:47PM (#21930087)
I vehemently disagree, you can't just redefine Pi-Day to what you want. Pi Day is 3/14, not 4/4 or 6/6.

As for calling it Doomsday, well, it's from the title of the paper about the algorithm, by the man who invented it, the famous John Conway: https://en.wikipedia.org/wiki/Doomsday_rule

Re:Calculate the day of the week for any date in your head by stkdump on Wednesday January 01, 2020 @11:52PM (#21933119)
I didn't come up with this. According to the article, Roman Weil of Princeton teaches the same.