Major League Dreidel is a real thing, and 15 other facts about holiday traditions

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Did you know that the Christmas tree in Rockefeller Center costs the city of New York more than $1.5 million dollars each year?

That's just one of the surprising facts about holiday traditions in this week's video from our sister site Mental Floss, hosted by author John Green. Some of the other facts include the mistletoe kissing tradition, which took off in Victorian England with the warning that women who refused kisses wouldn't receive marriage proposals the following year. And Major League Dreidel, which was founded in New York City in 2007, is a real sport.