| 1919 | Ordained to the priesthood |
| 1927-1939 | Dean of Saint Sophia Cathedral, London |
| 1939-1949 | Metropolitan of Diocese of Corinth |
| October 11, 1949 | Elected Archbishop of North and South America |
| December 18, 1949 | Enthroned at Holy Trinity Cathedral |
| 1951 | Official founding of Greek Orthodox Youth of America (GOYA) |
| 1952 | 11th Clergy-Laity Congress institutes Dekadollarion replacing Monodollarion |
| 1954 | Archbishop Michael elected one of six Presidents of World Council of Churches, Evanston, IL |
| 1955 | Orthodoxy officially recognized as major faith by U.S. government |
| January 21, 1957 | Archbishop Michael delivers Invocation at Inauguration of President Dwight D. Eisenhower – first by an Orthodox Hierarch |
| May 28, 1958 | Archbishop Michael presides at opening of Saint Michael’s Home. The only Archdiocesan institution serving the needs of elderly Greek Orthodox |
| July 13, 1958 | Archbishop Michael succumbs in New York City after becoming ill at the 14th Clergy Laity Congress in Salt Lake City |
Archbishops of the Greek Orthodox Archdiocese of America