400 p., This dissertation explores the spread and articulation of Garveyism--the political movement spearheaded by Jamaican activist Marcus Garvey--across Africa, the greater Caribbean, and the United States in the years following the First World War. Scholarship on Garveyism has remained fixed within a conceptual framework that views the movement synonymously with the rise and fall of Garvey's organization, the Universal Negro Improvement Association (UNIA), and which focuses predominantly on the activities of the organization in the United States. This study argues that Garveyism is more fully rendered as a global endeavor of network-building, consciousness-raising, and activism that extended beyond the operational parameters of the UNIA, influenced a diverse array of regionally-constituted political projects, and nurtured the flowering of a profoundly "Garveyist" period in the history of the African diaspora.