Phi Sigma Alpha traces its origins to a number of organizations including Phi Lambda Alpha. Phi Lambda Alpha fraternity was founded at the University of California, Berkeley, in 1919. The fraternity was the result of a merger of three societies: Pi Delta Phi Fraternity at Massachusetts Institute of Technology (MIT), founded in 1916; Phi Lambda Alpha Fraternity, founded in 1919 at the University of California, Berkeley; and the Unión Hispano Americana, founded in 1898, at Rensselaer Polytechnic Institute, Troy, New York. This last one was the first Latin-American student society formed in the USA; A group of Latin American students organized the Unión Hispano Americana (UHA) as a cultural and intellectual secret society based on the ideology of Pan-Americanism.