In 2012, Carter 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.
Carter surpassed Herbert Hoover as the longest-retired president in U.S. history. This was in 2012. He is also the first president to mark the 40th anniversary of his inauguration. This is in 2012.