I didn't know that tarot cards were originally used for a plain old ordinary card game. Makes sense, though, doesn't it? It's a trick-taking game with the major arcana used as trump cards. Apparently the game didn't catch on in the English-speaking world, where the cards were instead mystified and used for divination. The other fun fact I learned by reading the Wikipedia article on the tarot was that tarot divination isn't that old...just since the 18th century.