→1990s - Greek Orthodox Christians: number of members based on official documentation.
Adamopoulos was appointed in 1942 by the Greek government to take charge of Greek interests in the Philippines. He was later promoted to the rank of Consul General of Greece.
In 1989, Adamopoulos saw the need to establish the first true Greek Orthodox church in the Philippines and thus established the Hellenic Orthodox Foundation Inc. Although he died in 1993 before the church was completed, the Orthodox Cathedral was finished in 1996 and is constructed in true Byzantine style, with all the interior furnishings imported from Greece, and is home to approximately
200 Orthodox in Metro Manila, the capital city of the Philippines. This cathedral was consecrated by the Ecumenical Patriarch on March 5, 2000.
===1990s - First Filipino converts===