sentences:  Pi Delta Phi
  
  Pi Delta Phi (ΠΔΦ) is the National French Honor Society—La Société d'Honneur de Français—for undergraduate and graduate students at accredited public and private colleges and universities in the United States.Founded as a departmental honor society for French at the University of California, Berkeley in 1906, Pi Delta Phi is the oldest collegiate academic honor society for a modern foreign language in the United States.