The Yule goat is one of the oldest Scandinavian and Northern European Yule and Christmas symbols and traditions. Its origin may be Germanic pagan, and the figure have existed in many variants during Scandinavian history. Today, the Yule goat is typically a goat figure made of straw. The custom of wassailing is sometimes called "going Yule goat" in Scandinavia.
The Yule goats origins might go as far back as to pre-Christian days. A popular theory is that the celebration of the goat is in connection to the Norse god Thor, who rode the sky in a chariot drawn by two goats, Tanngrisnir and Tanngnjóstr. It is also known that in old agricultural Scandinavia, the last sheaf of corn bundled in the harvest was credited with magical properties as the spirit of the harvest and saved for the Yule celebrations, called among other things "julbocken" (the Yule goat). A man-sized goat figure is known from 11th-century celebrations of Childermas, where it was led by a man dressed as Saint Nicholas, symbolising his control over the Devil.
The function of the Yule goat has differed throughout the ages. In a Scandinavian tradition similar to wassailing, held at either Christmas or Epiphany, young men in costumes would walk between houses singing songs, acting out plays and playing pranks. This tradition is known from the 17th century and continued in places into the early 20th century. The group of Christmas characters would often include the Yule goat, a rowdy and sometimes scary creature demanding gifts.
Other traditions are possibly related to the sheaf of corn called the Yule goat. In Sweden, people thought of the Yule goat as an invisible spirit that would appear some time before Christmas to make sure that the Yule preparations were done right. Objects made out of straw or roughly-hewn wood could also be called the Yule goat, and in older Scandinavian society a popular Christmas prank was to place this Yule goat in a neighbour's house without them noticing; the family successfully pranked had to get rid of it in the same way.
During the 19th century the Yule goat's role all over Scandinavia shifted towards becoming the giver of Christmas gifts, with one of the men in the family dressing up as the Yule goat. In this, there might be a relation to Santa Claus and the Yule goat's origin in the medieval celebrations of Saint Nicholas. The goat was then replaced by the jultomte (Father Christmas/Santa Claus) or julenisse at the end of the century, although he is still called the Yule goat (Joulupukki) in Finland, and the tradition of the man-sized goat disappeared.
The modern Yule goat 
The Yule goat in Scandinavia today is best known as a Christmas ornament. This modern version of the Yule goat figure is a decorative goat made out of straw and bound with red ribbons, a popular Christmas ornament often found under the Yule tree or Christmas tree. Large versions of this ornament are frequently erected in towns and cities around Christmas time – these goats tend to be illegally set on fire before Christmas. The Gävle goat was the first of these goats, and remains the most famous.
See also 
- Cf. Rossel & Elbrönd-Bek (1996:xiv).
- Schager, Karin. Julbocken i folktro och jultradition (the Yule goat in folklore and Christmas tradition), Rabén & Sjögren, 1989.
- The Museum of Nordic History - Julbocksmask (Yule goat Mask)
- The Museum of Nordic History - Att gå med stjärnan (To Walk with the Star) 
- Cf. Reade (1914:71).
- Reade, Arthur (1919). Finland and the Finns. Dodd, Mead and Company.
- Rossel, Sven H.; Elbrönd-Bek, Bo (1996). Christmas in Scandinavia. Lincoln: University of Nebraska Press. ISBN 0-8032-3907-6
|Wikimedia Commons has media related to: Yule Goat|
- The Gävle Goat webcam
- A website with pictures of decorative straw goats
- The Gävle Goat has been fire proofed for Christmas 2006
- Traditional Christmas games
- Information about the Norwegian Yule Goat tradition
- Webcamplaza.net Christmas Cams