Anna Eleanor Roosevelt (/ˈɛlɨnɔr ˈroʊzəvɛlt/; October 11, 1884 – November 7, 1962) was the longest-serving First Lady of the United States, holding the post from 1933 to 1945 during her husband Franklin D. Roosevelt's four terms in office. President Harry S. Truman later nicknamed her the "First Lady of the World" in tribute to her human rights achievements.