Wherever they went, Baganda insisted on the exclusive use of their language, Luganda, and they planted bananas as the only proper food worth eating. They regarded their traditional dress—long cotton gowns called kanzus—as civilized; all else was barbarian. They also encouraged and engaged in mission work, attempting to convert locals to their form of Christianity or Islam. In some areas, the resulting backlash aided the efforts of religious rivals — for example, Catholics won converts in areas where oppressive rule was identified with a Protestant Muganda chief.