to destroy the 'Big Three' relationship of the time. Harvard's actions were based on the fact that games with Princeton had been marred by fights and roughness. During the 1930s, the 'Big Three' was restored, and in 1939 it was enlarged to the Ivy League. During World War II the student body of Princeton University became almost entirely military as the result of Reserve Officer Training Corps mobilization, the Navy V-7 and V-12 programs, and the Army Specialized Training Program. Wartime changes opened Princeton to the larger world and brought it into the mainstream of American society. From their beginnings Harvard, Yale and Princeton restricted the admittance of Jews and other minorities. After World War II, however, ethnic prejudice was condemned in higher education because of the US commitment to democracy. College-bound veterans, benefiting from the GI Bill, flooded admissions offices with applications. By the 1950s and 1960s the Big Three began to expand their admission policies, admitting more minorities. Religion In the early 20th century, the student body was predominately old-stock, high-status Protestants, especially Presbyterians, Episcopalians, and Congregationalists—a group later called "WASPS" (White Anglo-Saxon Protestants). In the early 20th century liberal Christians came to dominate the student body, a former evangelical stronghold. In 1915 President John Grier Hibben refused the request of evangelist Billy Sunday to preach on campus, but later allowed liberal theologian Albert Parker Fitch to do so. Liberals sought to make Princeton a modern university that promoted a liberal philosophy of education and liberal theology. Conservative Christians considered the teachings of the liberals to be heresy and sought to get Lucius H. Miller, the liberal professor of Bible studies, removed from the faculty and to have Bible classes eliminated from the curriculum. Liberals favored retaining the religious aspects of the curriculum and, since they came to control Princeton, they were able to maintain those courses along with various institutions that promoted liberal piety. They did this through an uneasy alliance with cultural modernists on the faculty. Gradually the hegemony of the liberal Christian leaders of higher education was eroded by the secularization of the university that occurred during the first half of the 20th century. Princeton thus ceased being a Presbyterian institution in the 1920s, as symbolized by the building of a great interdenominational chapel. Mathematics American mathematicians of the 1920s worked to maintain the generous funding they had received during World War I. Unwilling to