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Big part of U.S. stamp history includes Elvis, Homer Simpson? Why yes

Sunday is U.S. Postage Stamp Day

So, did you collect stamps when you were a kid?

Do you even know what the current price of a normal postage stamp is these days? (OK, we'll give you the answer, it's 50 cents. Two whole quarters!)

Whether you are a stamps enthusiast or just care about them as a means to send out Christmas cards and letters, stamps have stamped their way into a prominent role in American culture.

In honor of U.S. Postage Stamp Day on July 1, see what you know about stamps with the quiz below.