She served as the first lady of the United States from 1933 to 1945, during her husband President Franklin D. Roosevelt's four terms in office, making her the longest-serving first lady of the United States
She worked tirelessly to improve the access women had to New Deal legislation, notably by creating what were known as “she-she-she camps,” or women's organizations of the Civilian Conservation Corps (CCC).
She was appointed chair of the UN Commission on Human Rights which drafted the UDHR.