A lot has changed in the last ten years: America has gone to war in two different countries, the global economy crashed and the advent of social media tools like Facebook and Twitter have changed the way people interact with each other. But amidst the volatility there is one constant: Daniel Radcliffe portraying Harry Potter in a steady string of movies based on the wildly popular books. In that time he has grown up from a shy, geeky boy to a young man taking on powerful roles including the part of Alan Strang in a revival of the play Equus and the lead part in Broadway production How to Succeed In Business Without Really Trying. Take a look below at Radcliffe's evolution from an unknown child actor to one of the biggest names in entertainment.

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Daniel Radcliffe shuffles as he poses for photographers during the "Harry Potter and the Scorcerer's Stone" news conference in central London August 23, 2000. REUTERS
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Daniel Radcliffe arrives at the premiere of "Harry Potter and the Philosopher's Stone" at the Odeon Leicester Square, November 4, 2001. REUTERS
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British actor Daniel Radcliffe arrives at London's Odeon Leicester Square for the world premiere of "Harry Potter and the Chamber of Secrets" on November 3, 2002 REUTERS
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Daniel Radcliffe, who plays the character Harry Potter, poses for photographers on the red carpet of the United States world premiere screening of " Harry Potter and the Prisoner of Azkaban REUTERS
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Actors Daniel Radcliffe and Ralph Fiennes(R) pose for photographers at the premiere of the film "Harry Potter and The Goblet of Fire" in New York November 12, 2005. REUTERS
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Daniel Radcliffe, who portrays Alan Strang in "Equus", smokes a cigarette on stage during a photo call to promote his new play at the Gielgud Theatre in London's West End February 22, 2007 REUTERS
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Actor Daniel Radcliffe poses at the 62nd Annual Tony Awards in New York, June 15, 2008. REUTERS
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