People QuizMary-Kate & Ashley's Birthday Pop Quiz

Which sister was born first? Who's making a TV comeback? As they turn 21, test your knowledge on the world's most famous twins. By Caryn Midler

Which twin was born first? | Ashley Olsen, Mary-Kate Olsen

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Q: Which twin was born first?

CREDIT: Courtesy: Everett Collection

Published : Thursday June 07, 2007 03:00 PM EDT

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