The document provides a history of Christmas trees and their origins. It discusses how evergreen trees have long been used in winter festivals by pagans and early Christians. The tradition of Christmas trees began around 1000 AD in Northern Europe, though early trees were sometimes hung upside down or made of other plants or wooden pyramids. The first documented trees used for Christmas celebrations were in Tallinn, Estonia in 1441 and Riga, Latvia in 1510. Martin Luther is credited with bringing the tree into homes in the 16th century. Christmas trees became popular in Britain after Queen Victoria had one in Windsor Castle in the 1840s. The document also provides background on the origins of Santa Claus from St. Nicholas.