Established by a pair of philanthropists who believed adamantly in the power of creativity, Yaddo has hosted some of the twentieth century's most renowned writers, composers, and visual artists, including Hannah Arendt, James Baldwin, Saul Bellow, Leonard Bernstein, Elizabeth Bishop, Truman Capote, Flannery O'Connor, Aaron Copland, Langston Hughes, Carson McCullers, Sylvia Plath, Philip Roth, and Clyfford Still.