Well, Winter solstice marks the REAL arrival of Winter, but the real natural date does not always coincide with official date. This is because a natural year -a cycle around the sun- does not last exactly 365 days, but 365 days, 5 hours and 51 minutes. Gregorian chalendar adds a day every four years -except every 400 years- to avoid an excessive lag respect of the natural seasonal cycle. In fact, that was the reason for Gregorian reform, since the Julian chalendar had a lag of more than 11 days, which affected to the calculation of the seasonal changes -and hence the plant and harvest procedures, so vital then.Originally Posted by Teutobod II
So, it was not rare to have Winter Solstice on December 24th by the date -in Middle Ages- when the official church calendar was adopted.
BTW, SaFe referred to the solstice, not to a precise date. Germans didn't use Julian calendar.
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