▁century ▁that ▁the ▁first ▁women ' s ▁frat ern ities ▁were ▁established . ▁The ▁university ▁first ▁admitted ▁women ▁to ▁gradu ate ▁programs ▁in ▁ 1 9 2 0 , ▁although ▁under grad uate ▁women ▁were ▁not ▁allowed ▁at ▁the ▁university ▁until ▁much ▁later . ▁With ▁these ▁gradu ate ▁women ▁came ▁several ▁organizations ▁for ▁women , ▁referred ▁to ▁altern ately ▁as ▁sor or ities ▁or ▁women ' s ▁frat ern ities . ▁The ▁first ▁sor or ity ▁to ▁establish ▁a ▁chapter ▁at ▁the ▁university ▁was ▁Chi ▁Om ega ▁( Χ Ω ), ▁whose ▁chapter ▁was ▁founded ▁in ▁ 1 9 2 7 . ▁A ▁K appa ▁D elta ▁( Κ Δ ) ▁chapter ▁followed ▁in ▁ 1 9 3 2 , ▁and ▁a ▁chapter ▁of ▁Z eta ▁T au ▁Al pha ▁( Ζ Τ Α ) ▁was ▁established ▁twenty ▁years ▁later ▁in ▁ 1 9 5 2 . ▁ ▁In ▁ 1 9 4 7 , ▁with ▁the ▁inaug uration ▁of ▁Col gate ▁D arden ▁as ▁president ▁of ▁the ▁university , ▁first - year ▁students ▁were ▁prohib ited ▁from ▁joining ▁frat ern ities ▁and ▁sor or ities . ▁This ▁restriction ▁was ▁later ▁e ased ▁to ▁a ▁one - sem ester ▁prohib ition , ▁which ▁is ▁still ▁in ▁place ▁today . ▁During ▁this ▁time ▁only ▁ 2 0 ▁percent ▁of ▁students ▁were ▁members ▁of ▁the ▁ 2 4 ▁frat ern ities ▁on ▁grounds . ▁ ▁D arden ▁was ▁critical ▁of ▁the ▁frat ern ities ' ▁behavior , ▁arg uing ▁in ▁a ▁ 1 9 4