1 Allen, Linda. Decking the Halls: The Folklore and Traditions of Christmas Plants. Minocqua, WI: Willow Creek Press, 2000.
2 Botham, Noel. Book of Useless Information. New York, New York: Penguin Random House LLC, 2006.
3 “Christmas Trees and More.” University of Illinois Extension. 2010. Accessed: December 6, 2010.
4 Collins, Ace. Stories Behind the Great Traditions of Christmas. Grand Rapids, MI: Zondervan, 2003.
5 Cowan, Alison Leigh. "A 166-Year-Old Manuscript Reveals Its Secrets." The New York Times. December 24, 2009. Accessed: December 22, 2016.
6 Grossman, John. Christmas Curiosities: Odd, Dark, and Forgotten Christmas. New York, NY: Stewart, Tabori & Chang, 2008.
7 Guinness Book of World Records. New York, NY: Bantam Dell, 2008.
8 Gulevich, Tanya. Encyclopedia of Christmas. Detroit, MI: Omnigraphics, Inc, 2000.
9 Highfield, Roger. The Physics of Christmas: From the Aerodynamics of Reindeer to the Thermodynamics of Turkey. New York, NY: Little, Brown and Company, 1998.
10 "Lego in Numbers." The Telegraph. August 30, 2011. Accessed: September 13, 2016.
11 Lewis, Randy. "Jews Among Musicians With Christmas Spirit." SF Gate. December 26, 2009. Accessed: September 13, 2016.
12 Liebman, Lisa. Leaving You: The Cultural Meaning of Suicide. Chicago, IL: Ivan R. Dee Publisher, 2003.
13 "Nog." Online Etymology Dictionary. Accessed: November 29, 2018.
14 Philips, Tom. “Facebook Break-Up Chart Shows That Christmas Is a Relationship Killer.” Metro. November 2, 2010. Accessed: November 15, 2010.
15 "Put Safety at the Top of Your List When Decorating this Holiday Season!" U.S. Consumer Product Safety Commission (CPSC). December 6, 2017. Accessed: November 29, 2018.