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The university campus opened on 11/02/1891, in rented quarters in the Wooster Block, at the corner of Fair Oaks Avenue and Green Street. Shortly thereafter, Amos Throop's campus, located on a parcel bordered by Raymond Avenue on the west and Chestnut Street to the south, was comprised of five schools--an elementary school for grades 1-8, the Polytechnic Elementary School, a Preparatory Academy known as the Throop Polytechnic School, a two-year trade school, a college, a normal school, and a four-year college. Throop was named for Amos G. Throop, a local businessman and benefactor to the school (and a local Unitarian congregation). By 1907, under the new leadership of George Ellery Hale, changes began to Throop and its five constituent schools. In 1908, the elementary school had been separated, the commercial school and the normal school closed, and the Preparatory Academy and College had their curricula changed, emphasizing engineering. The Academy was detached from the College in 1911, given to the City of Pasadena High School. The College, in turn, continued its technological orientation, later renaming itself the California Institute of Technology in 1921.

Throop is pronounced "troop."

PCAD id: 7341