I know you don't really believe what you've written here---no one is
THAT dense---but to play along with your supposed ignorance,.
From Wikipedia:
"A Christmas Tree'', or (rarely) Yule tree, is one of the most popular traditions associated with the celebration of Christmas. "
And why do people call it a "Christmas" tree rather than say, a December tree or maybe a Snowflake tree? Think it could be because it has something to do with Christmas? Remember that last part, "
with the celebration of Christmas." ?
And just what is Christmas?
Again from Wikipedia (not because I can't explain it myself, but that I'm a bit lazy tonight). Anyway, Christmas>>>>
"Christmas, also referred to as Christmas Day or Christmastide, is an annual holiday celebrated on December 25 that marks and honors the birth of Jesus of Nazareth."