Seleucid Empire

The Seleucid dynasty emerged from the division of Alexander the Great’s empire. Founded by Seleucus I, it ruled territories extending at different times from the eastern Mediterranean through Mesopotamia and Iran into Central Asia. New and refounded cities helped organise this vast realm, alongside older communities with their own languages and religious traditions. Wars with neighbouring kingdoms, regional independence and dynastic struggles progressively reduced Seleucid power before Rome annexed its remaining Syrian kingdom in the first century BC. Cities, fortresses and religious monuments preserve parts of this changing imperial landscape.

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