▁as ▁a ▁secret ▁organization ▁under ▁the ▁name ▁of ▁I . ▁C . ▁Sor osis ▁on ▁April ▁ 2 8 , ▁ 1 8 6 7 ▁at ▁Mon mouth ▁College ▁in ▁Mon mouth , ▁Illinois . ▁Pi ▁B eta ▁Ph i ▁is ▁regarded ▁as ▁the ▁first ▁national ▁women ' s ▁frat ern ity . ▁The ▁found ers ▁were ▁Clara ▁Brown lee ▁H utch inson , ▁Lib bie ▁Brook ▁G add is , ▁Emma ▁Brown lee ▁Kil g ore , ▁Margaret ▁Campbell , ▁Rosa ▁Moore , ▁Ada ▁Bru en ▁G rier , ▁Nancy ▁Black ▁Wal lace , ▁Jenn ie ▁Hor ne ▁Turn b ull , ▁Jenn ie ▁Nicol , ▁I nez ▁Smith ▁Sou le , ▁F ann ie ▁Thom son , ▁and ▁F ann ie ▁Wh iten ack ▁Lib bey , ▁and ▁they ▁created ▁the ▁society ▁to ▁enjoy ▁the ▁benefits ▁of ▁a ▁secret ▁society ▁similar ▁to ▁those ▁formed ▁by ▁colleg iate ▁men . ▁They ▁planned ▁their ▁society ▁at ▁a ▁home ▁where ▁two ▁of ▁the ▁women ▁r ented ▁a ▁room , ▁choosing ▁I . ▁C . ▁Sor osis ▁as ▁the ▁name ▁and ▁" Pi ▁B eta ▁Ph i " ▁as ▁the ▁mot to . ▁ ▁Short ly ▁after ▁the ▁found ing , ▁the ▁sister s ▁had ▁a ▁j ew eler ▁design ▁their ▁official ▁bad ge : ▁a ▁golden ▁arrow ▁with ▁the ▁letters ▁" I . ▁C ." ▁on ▁the ▁wings . ▁When ▁the ▁name ▁was ▁changed ▁to ▁" Pi ▁B eta ▁Ph i ," ▁the ▁Greek ▁letters ▁replaced ▁" I . ▁C ." ▁on ▁the ▁wings