Charlemagne's conquest of Europe reshaped the continent's religion as much as its borders, and this Timeline film traces how a Frankish warlord became the architect of Christian Europe. After subduing the Saxons in a decades-long war, Charlemagne forces the defeated leader Widukind to convert, using baptism as a tool of political submission as much as faith. The film follows his push to standardize worship across his empire, including commissioning a common-language translation of the Bible so a fractured patchwork of kingdoms could share a single religious text and, with it, a single identity. Historians walk through the alliance between Charlemagne and the papacy that culminated in his coronation as Holy Roman Emperor, and how that bond set the template for church-state relations for centuries afterward. Location footage and expert interviews ground the narrative, presenting Charlemagne's Christianization campaign not as pure piety but as statecraft, forced conversion and military conquest bound together into one project of empire-building.