Abstract

The article tries to contribute to a more concrete embedding of early Islam into the context of late antique, in particular late Roman history. It takes its starting point in a description of the phenomenon of liturgification as an overarching process of religious permeation and internalization that swept across Eastern Roman society since the second half of the sixth century and saved society from collapse. During the early seventh century, when the Romans suffered from immense territorial losses to the Persians, liturgification contributed to the survival of the Empire as well. Liturgification, however, radiated out into the territory of the immediate neighbors of the Romans, and thus also reached Arabia by various ways, not least via trade and military contacts, but probably above all through the mediation of the Ǧafnids, who energetically supported Christianization in their area of influence, which extended deep into the Arabian Peninsula. In this way, liturgification itself created the enabling space in which Islam could come into being. The restitutio crucis by Heraclius in Jerusalem, March 21, 630, then lent these developments concrete reference points and impetus. It should be viewed as the culmination of a process that was driven in turn by liturgification and characterized especially by the grave threats that the Eastern Roman-Byzantine Empire faced in its war against the Persians in the early decades of the seventh century. It led to a reconceptualization of the imperial monarchy, which now attributed a messianic quality to the emperor in a highly eschatologically charged context. The emperor, in turn, first effectively tapped the representational potential of this quality in the act of restoring the relics of the True Cross in Jerusalem in 630. This brought about a situation of messianic rivalry, since the rise of the Prophet Muhammad – which was made possible in turn by the penetration of liturgification into Arabian territory – was based on claims similar to those that Heraclius had claimed for himself. The first attacks on Byzantine outposts in the years 629/30 may have been a direct response to the emperor’s self-representation in Jerusalem. They were the beginning of the Muslim armies’ excursions beyond the Arabian Peninsula and thus the beginning of the great Muslim-Arabian Empire that would come into being in the ensuing century. Against this background, the restitutio crucis proves to be vitally important as a turning point in developments both within the Byzantine Empire and beyond its borders.