Roma LVIII
From Tardis Wiki, the free Doctor Who reference
Roma LVIII was one of many Known Worlds where the Roman Empire never fell. There, Constantine worshipped Christ, who led him into victory in battle; Christianity became the official religion, and no other faiths were tolerated.
When Marcus Americanius Scriptor first visited Roma LVIII, Emperor Flavius Venerarius was the absolute ruler. A different version of Flavius Venerarius reigned in Roma CI, which was alike in all ways except that Constantine worshipped Mithras. (PROSE: Warlords of Utopia)
