Phi Tau () is a coeducational fraternity at Dartmouth College in Hanover, New Hampshire, USA. Founded in 1905 as the Tau chapter of Phi Sigma Kappa, the organization separated from the national fraternity in 1956 over a dispute regarding the segregationist membership policies of the national organization. The fraternity renamed itself Phi Tau Fraternity, and in 1972 became the first fraternity at Dartmouth to admit women student members. Today, Phi Tau Coeducational Fraternity is one of only three remaining, officially recognized coeducational Greek organizations on the Dartmouth College campus. History The Phi Sigma Kappa years Phi Tau Coeducational Fraternity at Dartmouth College was founded as the Tau chapter of Phi Sigma Kappa in 1905. Phi Sigma Kappa was the sixteenth fraternity to open a chapter at Dartmouth. Being a relatively late arrival on campus, prime lots on Webster Avenue, where most of the other fraternities were located, were unavailable. With the help of the national organization, a house for the fraternity was purchased on what was then the northern edge of the college campus. By the late 1920s, however, the house had begun to show its age, and a building campaign resulted in the demolition of the old building and the construction of a new building during the 1927-1928 academic year. This new house was built with three stories above ground with a basement, and included living quarters for eighteen students (the maximum permitted by the College at the time.) Although the new residence included a kitchen, fraternities at Dartmouth were not allowed to serve meals on a regular basis, and the kitchen was used primarily by the residents and during social functions. Over the years, there were many changes to the building, including two different porches constructed on the south side of the building, the installation of sump pumps which allowed finishing of rooms in the basement, and the relocation of the boiler room, social areas, and even a staircase. The brotherhood of the Tau Chapter of Phi Sigma Kappa underwent a great transition in the years of World War II and immediately afterward. Many members of the classes of 1942 through 1945 were rushed through their academic studies and went off to war without so much as a graduation ceremony. At the same time, the U.S. Navy organized a V-12 Navy College Training Program on the Dartmouth College campus. Many Phi Sigma Kappa men from Dartmouth went off