In 1950, Archbishop Spyridon of Athens led the call for Cypriot enosis in Greece.[23] The Church was a strong supporter of enosis and organised a plebiscite, the Cypriot enosis referendum, which was held on 15 and 22 January 1950; only Greek Cypriots could vote. Open books were placed in churches for those over 18 to sign and to indicate whether they supported or opposed enosis.