In colonial Southern Rhodesia, administrative officials often couched the rhetoric of ‘modernization’ in ethnic terms. They regarded immigrant Madheruka master farmers as the embodiment of modernization because they had been exposed to forces of modernization in their areas of origin, while both officials and immigrants alike regarded indigenous Shangwe as backward and primitive. This article argues that the construction of Madheruka and Shangwe ethnic identities dates primarily to the early 1960s, with the coming of immigrants and the introduction of cotton. Shangwe defined the immigrants as madheruka, a term whose origins lay in the eviction of the immigrants from crown land by colonial officials in the 1950s, while Madheruka termed the indigenous peoples shangwe, or backward. Each group perceived itself differently, however, Shangwe claiming that the term Shangwe referred to a place rather than to their ethnic identity and Madheruka claiming to belong to authentic Shona groups. The guerrilla war of the 1970s witnessed an attack on modernity as the guerrillas and their sympathizers regarded immigrant farmers as colonial collaborators.