Former President Jimmy Carter, a peanut farmer and Georgia state governor before becoming president, has died at the age of 100. Since leaving the White House, Carter has logged millions of miles and visited dozens of countries on missions to wipe out diseases, mediate conflicts, advocate for human rights and monitor elections. He's built a legacy that few, if any, American ex-presidents can match.
In Photos: A look back at the life of President Jimmy Carter

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U.S. President Jimmy Carter and California Governor Ronald Reagan during a U.S. presidential election debate in Cleveland, Ohio, Oct. 28, 1980.

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Former U.S. President Jimmy Carter, Jan. 21, 1981, in Wiesbaden, Germany, arrives at the U.S. Air Force hospital here to greet the hostage released by Iran after 445 days of captivity.

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After seven hours of talks at the Bosnian Serb headquarters in Pale, Bosnia, former U.S. President Jimmy Carter, center, Bosnia Serb leader Radovan Karadzic, left, and Bosnian Serb army Commander Ratko Mladic, right, signed a declaration proposing a four-month ceasefire in the Bosnian war, Dec. 19, 1994.

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Former President Jimmy Carter teaches Sunday school at Maranatha Baptist Church in Plains, Georgia, Sept. 22, 2009.