The latter paper forms the latest in a series of links stretching back to the 1793 founding by African American women in Philadelphia of the Female Benevolent Society of St. Thomas and the 1818 founding of the Colored Female Religious and Moral Society in Salem, Massachusetts. Since these very early days—and most intensely during the United States' Progressive Era (~1890–1920)—African American women have habitually formed organizations, often called clubs, to better the lives of their brothers and sisters. The most famous of the women responsible for the rise of Black women's clubs in the Progressive Era was the journalist, author, and Civil Rights activist, Ida B Wells, whose work organizing women against the lynching of Blacks in the U.S. was especially influential. (Wells served as the chairperson of the National Afro-American Council's Anti-Lynching Bureau, among many other achievements.) Another towering figure in the Black women's club movement of the Progressive Era was Margaret Murray Washington, of the Tuskegee Institute, whose work on improving the health and well-being of Black people in the South and around the country beginning in the late 19th century ultimately resulted in her husband, Booker T. Washington, calling for the creation of a "Health Improvement Week" in 1914; this became recognized as National Negro Health Week (1915–1951).