[SunkenCiv]

BTW, all, there are genealogists who have developed nice research about this, in the main because various countries changed over at various times, and in the case of, I believe it was, Sweden, they kept changing their minds about it.

[Verginius Rufus]

I think in Sweden instead of making the change all at once, they just omitted Feb. 29th in years that would have been leap years until they were in synch with the Gregorian calendar--which meant that for some decades they had a calendar date that was different from anyone else's.

In England when the change was made people thought they were losing 11 days. "Give us back our 11 days!"