In the fall of 1909, the sophomore class at the College of the City of New York had found itself embarrassed by "lowly freshmen". At a school where "warfare" between freshman and sophomore class was a tradition, the sophomores found it necessary to regain their fallen honor. Class Marshal Lester Cohen called a meeting of sophomore leaders on November 26, 1909 to decide on a plan for redemption. Eight appeared in proper order Ira N. Lind, Jacob Kaplan, Lester Cohen, Samuel Ginsburg, Hyman I. Jacobson, David D. Levinson, Abraham N. Kerner, Adolph I. Fabis, who are now known as the founders of Sigma Alpha Mu.
Sigma Alpha Mu's stated mission is "to guide each undergraduate member toward a more meaningful life, to prepare members for responsible fraternity and community involvement, and to create social and service opportunities for its alumni." Its creed is "To foster and maintain among its sons a spirit of fraternity, a spirit of mutual moral aid and support; to instill and maintain in the hearts of its sons love for and loyalty to Alma Mater and its ideals; to inculcate among its sons such ideals as will result in actions worthy of the highest precepts of true manhood, democracy, and humanity."