Interesting fact: Christmas trees became commonplace in American homes around the beginning of the 1920s. Their popularity soared, however, a decade later when the landscaping industries resorted to selling their shaped trees for Christmas trees because they weren't able to sell them for their intended purpose due to the depression.

1. Karas, Sheryl. The Solstice Evergreen: History, Folklore and Origins of the Christmas Tree. Fairfield: Aslan Publishing, 1998.