jats:titleAbstract</jats:title>jats:pThis article analyses a Muslim missive, which was circulated in German East Africa in 1908. Erroneously dubbed the “Mecca letter”, it called believers to repentance and sparked a religious revival, which alarmed the German administration. Their primarily political interpretation of the letter was retained in subsequent scholarship, which has overlooked two important textual resources for a better understanding of the missive: the presence of similar letters elsewhere and the fourteen copies still available in the Tanzanian National Archive. Presenting the first text-critical edition of the letter, together with a historical introduction of the extant specimens and a textual comparison to similar missives elsewhere, the article argues that the East African “Mecca letter” of 1908 was nothing more than a local circulation of a global chain letter. As such, its rapid transmission was not connected to a single political agency, but was likely prompted by a large variety of motivations.</jats:p>