The ordinariate was established on December 21, 1925, by Pope Pius XI[1] to serve Armenian Catholics who arrived in Greece during the First World War. This Armenian Catholic Ordinariate of Greece was created to the particular churchsui iuris had no proper Ordinary.
From 1950 to 2002, the ordinariate, shaped by its diaspora situation, increased from 450 to 550 Armenian Catholic Christians, cared for by the only diocesan priest of the Ordinariate in the only municipality in the country.
The Ordinariate extends its jurisdiction over the Armenian Catholics of the whole Greece. There are 200 Catholics belonging to this ordinariate.[citation needed]