Yule (Germanic Pagan)
Yule was the winter solstice celebration of the Germanic pagans. In Germanic Neopaganism, this celebration is largely reconstructed to various extents by various groups. In Wicca, a form of the holiday is observed as one of the eight solar holidays, or sabbats, where Yule is celebrated on the winter solstice: in the northern hemisphere, circa December 21, and in the southern hemisphere, circa June 21.
"Yule" and "Yuletide" are also archaic terms for Christmas, sometimes invoked in songs to provide atmosphere. Indeed, this is the only meaning of "Yule" accepted by either the full Oxford English Dictionary or the Concise Oxford Dictionary, and people unfamiliar with ancient pagan traditions will not distinguish between Yule and Christmas. This usage survives in the term "Yule log"; it may also persist in some Scottish dialects.
Yule celebrations at the winter solstice predate Christianity, and though there are numerous references to Yule in the Icelandic sagas, there are few accounts of how Yule was actually celebrated, beyond the fact that it was a time for feasting. 'Yule-Joy', with dancing, continued through the Middle Ages in Iceland, but was frowned upon when the Reformation arrived. It is, however, known to have included the sacrifice of a pig for the god Freyr, a tradition which survives in the Scandinavian Christmas ham.
Many of the symbols associated with the modern holiday of Christmas such as the burning of the Yule log, the eating of ham, the hanging of boughs, holly, mistletoe, etc. are apparently derived from traditional northern European Yule celebrations. When the first missionaries began converting the Germanic peoples to Christianity, they found it easier to simply provide a Christian reinterpretation for popular feasts such as Yule and allow the celebrations themselves to go on largely unchanged, rather than trying to suppress them.
The Scandinavian tradition of slaughtering a pig at Christmas (see Christmas ham), and not in the autumn, is probably the most salient evidence for this. The tradition derives from the sacrifice to the god Freyr at the Yule celebrations. Halloween and Easter are theorized to have been likewise assimilated from northern European pagan festivals.