The history of Selucia covers the history of the territory of the modern state of Selucia as well as that of the Selucian people. Selucians are considered to belong to the Enetric peoples, and are thought to have arrived on the Selucian archipelago sometime in the 3rd millennium BCE. Throughout the following millennia, Selucian culture and civilization spread, directly or indirectly, to many areas outside the Selucian islands, including Pontesi, Barmenia, Deltaria, Zardugal, Istalia, or Canrille. Selucia was also the headquarters of the first international Hosian Church, and as such Selucian influence spread far beyond areas of Selucian control.