The revival period, popular at the turn of the century, became the foremost architectural parlance of the era as seen in such buildings particularly in Manila. Education of the masses also became the thrust of the American occupation, as such, public education was established, foremost of which is the University of the Philippines. With American rule firmly established in the Philippines, the military government at the time invited the well-known architect and urban planner Daniel Burnham to develop Manila. Burnham's arrival led to the formation of the Burnham Plan which identifies the city of Manila as a uniquely European city in the tropics and as such opposed to develop its architecture in line with the existing style. The style of architecture, as suggested, varies little from existing architecture at the time as typified by the Manila Hotel. New structures continued the use of conventional motifs but were made of more durable materials such as concrete. This style of architecture prevailed even after the turn of the century.