Anna Eleanor Roosevelt ( ; October 11, 1884November 7, 1962) was an American political figure, diplomat, and activist. She was the longest-serving first lady of the United States, during her husband Franklin D. Roosevelt's four terms as president from 1933 to 1945. Through her travels, public engagement, and advocacy, she largely redefined the role. Widowed in 1945, she served as a United States delegate to the United Nations General Assembly