Marcel Breuer was a Hungarian-American architect and designer who helped define modern architecture in the 20th century. Some of his most notable works included Begrisch Hall at Bronx Community College, built in 1961 out of exposed concrete in a brutalist style. He also designed the Chamberlain Cottage in 1941 which featured a free-floating timber framed floor above a stone basement. In 1963-1966 he created the Whitney Museum of American Art in Manhattan, giving it a strong modernist facade with a recessed entrance and gallery spaces defined by a precast concrete grid ceiling. Breuer helped establish the International Style through his use of new materials and forms to create architecture expressive of the industrial age.