This special section investigates the history of communication and media studies across national and linguistic contexts in the Americas. It maps transnational entanglements that have shaped communication inquiry in the multiple forms it has taken in South and North America and the Caribbean. At the same time, the section's articles attend to political, institutional, and cultural dynamics that shaped the field in different national and local contexts. In so doing, the special section throws light on topics and regions that have received little attention in English-language literature, and draws attention to historic lines of hegemony, exclusion, resistance, and alternative traditions of research across the hemisphere. In this editors' introduction, we outline the origins of the collective effort, connect it to