 Ubushakashatsi bushya bwakozwe na Kaminuza ya Ohio State yo muri Leta Zunze Ubumwe zAmerika, bwasanze mu gihe cyimyaka irenga gato 20 yamavuko ari bwo ubwonko bwacu ku nshuro ya mbere buba bwiganjemo ibitekerezo byo guhanga udushya. 