From the ArcaMax Publishing, Trivia Newsletter:
http://www.arcamax.com/news/trivia/s-460841-710622
Christmas trees are known to have been popular in Germany as far back as the sixteenth century. In England, they became popular after Queen Victoria's husband Albert, who came from Germany, made a tree part of the celebrations at Windsor Castle. In the United States, the earliest known mention of a Christmas tree is in the diary of a German who settled in Pennsylvania.
This news arrived on: 12/12/2008