Jimmy Carter was a president.
Camp David Accords . The two framework agreements were signed at the White House , and were witnessed by United States President Jimmy Carter . The Carter Center is a nongovernmental , not-for-profit organization founded in 1982 by former U.S. President Jimmy Carter . James Earl Carter Jr. ( born October 1 , 1924 ) is an American politician who served as the 39th President of the United States from 1977 to 1981 . The end of his presidential tenure was marked by the 1979 -- 1981 Iran hostage crisis , the 1979 energy crisis , the Three Mile Island nuclear accident , and the Soviet invasion of Afghanistan . In 2012 , he surpassed Herbert Hoover as the longest-retired president in U.S. history , and he is also the first president to mark the 40th anniversary of his inauguration .