Sigma Delta Tau (ΣΔΤ) is a national sorority and member of the National Panhellenic Conference. The original name, Sigma Delta Phi, was changed after the women discovered a sorority with the same name already existed. Sigma Delta Tau was founded on March 25, 1917 by seven Jewish women: Dora Bloom Turteltaub, Amy Apfel Tishman, Marian Gerber Greenberg, Grace Srenco Grossman, Inez Dane Ross, Regene Freund Cohane and Lenore Rubinow. There is no religious requirement for membership to the sorority, and it prides itself on being inclusive of all, as well as being historically Jewish.