Neil deGrasse Tyson

@neiltyson ↗

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Last Checked April 28, 2020

Created

Sat Feb 29 17:55:51 +0000 2020

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Neil deGrasse Tyson @neiltyson

By 1582, the Julian calendar, with a Leap Day every four years, had accumulated TEN extra days relative to Earth’s… https://t.co/0aB4mXsice — PolitiTweet.org

Posted Feb. 29, 2020

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Neil deGrasse Tyson @neiltyson

The 1582 Gregorian update to the Julian Calendar prescribes: The century years 1600 1700 1800 1900 & 2000 are all d… https://t.co/PGvbTRDbZ1 — PolitiTweet.org

Posted Feb. 29, 2020

Followed By

Neil deGrasse Tyson @neiltyson

Credit to Pope Gregory’s Jesuit priests for figuring out the Julian calendar needed updating - before telescopes, a… https://t.co/NsdGNQ5MsF — PolitiTweet.org

Posted Feb. 29, 2020