The Nuttall Encyclopedia
The old name for the festival of Christmas, originally a heathen one, observed at the winter solstice in joyous recognition of the return northward of the sun at that period, being a relic in the N. of the old sun worship.
Wood, James, ed. Entry for 'Yule'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/y/yule.html. Frederick Warne & Co Ltd. London. 1900.