<prompt> Ngo - July 17, 1967, inkantolo enamajaji amathathu eCharlottesville yaqinisekisa ukuthi umyalo wokuvimbela ukubonisana awusebenzi.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi ngokwengeziwe yalesi sigwebo ithi Ngo - July 17, 1967, inkantolo enezahluleli ezintathu eCharlottesville yaqinisekisa ukuthi umyalo wokuvimbela abantu ukuba bangene esikoleni wawuhlala unomphela, kodwa, umfundi wokuqala wase - Afrika - Melika wamukelwa ekolishi ngo - September 1966. 