Many languages, such as French, make no distinction between such nouns as Chrétienté and Christianisme. In the Anglophone world, on the other hand, Christianity and Christendom are, or can be, different things. Christendom as a term is widely used; but, perhaps because people assume that its meaning is self-evident, very few scholars bother to define it. To some, such as Christian moral philosopher Oliver O’Donovan, Christendom is an idea of ‘a professedly Christian secular political order’.2
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