Is/was 1400 a leap year?

Richard A. O'Keefe ok at atlas.otago.ac.nz
Thu May 17 00:29:30 UTC 2001


John Hinsley <jhinsley at telinco.co.uk> asks whether 1400 counts as a leap year.

It so happens that 1400 is before the adoption of the Gregorian calendar,
so it was a leap year.  Just when the transition from Julian to Gregorian
happened differs from country to country.  The Catholic countries switched
first.  Protestant countries switched later, England and its then colonies
switching in 1752.  Orthodox countries switched later still; Russia only
switched in the early 20th century.





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