Born in Estonia in 1901, Louis Isidore Kahn was to become one of the United States' most important architects of the post-war period, alongside the Modern masters Mies van der Rohe, Walter Gropius and Le Corbusier. Although renowned for a number of seminal modern works, he came to question many of the precepts of the Modern Movement. In particular, he questioned the ability of the International Style of Modernism to house the social spaces required by the latter half of the 20th century.In 1947, Kahn was appointed Professor at Yale University. He was to continue teaching throughout his architectural career, influencing a younger generation of architects along the way. His teaching enabled him to further develop his own concepts and to inform his ever-evolving definition of design.