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Call of Duty original game was released on October 29, 2003, by Activision. It was the start of an incredible franchise.

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Two years later Call of Duty 2 was released. It was even the most popular title on Xbox 360 and over 200,000 copies were sold in the first week it was available.

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A year later Call of Duty 3 was released and 1.1 million copies were sold in the U.S. it also was on the top 10 list in the U.K. at 3# place.

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A year later on November 5, 2007 Call of Duty 4: Modern Warfare was released and got over 7 million sold worldwide and was the best selling game of 2007. On June 3, 2008, Infinity Ward reported saying that over 10 million copies were sold.

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Call of Duty: World at War was on the top 5 list of best-selling games of November 2008 with over  1.41 million units sold in the U.S.

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Call of Duty: Modern Warfare 2 had 4.2 million copies sold on Xbox 360 and 1.87 million on PlayStation 3. This all happened in the 1 month of its release.

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Call of Duty: Black Ops was first sold in 2010 and there were 30 million copies sold worldwide. This game was released At the height of the franchise's popularity.