Brill Encyclopedia of Early Christianity Online

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With the attempt to resolve the “Arian” controversy, which in the 4th century CE had theologically and politically divided the church, Emperor Constantius II (r. 337–361 CE) called for two councils to be held simultaneously in the western and the eastern parts of the Roman Empire in 358 CE. The purpose was to negotiate a theological position between Nicene and Homoian Christians, who disagreed over whether God’s being was in one or three substances (hypostaseis) of the Father, Son, and Holy Spirit, and to exclude the Anomoean position…

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Berndt, Guido M., “Rimini”, in: Brill Encyclopedia of Early Christianity Online, General Editor David G. Hunter, Paul J.J. van Geest, Bert Jan Lietaert Peerbolte. Consulted online on 26 June 2022 <>
First published online: 2018

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