English: Timeline of the main Old Calendarists and True Orthodox Greek Orthodox Churches.
All those churches are called "True Orthodox Church (of Greece)" or "Greek True Orthodox Church", either officially or colloquially, whether they practise True Orthodoxy or not.
True Orthodox: churches which either consider themselves True Orthodox (the ideology), or which considers New Calendarists/churches practising ecumenism as graceless, or both. Old Calendarists: those who only refuse the new calendar. All True Orthodox are Old Calendarists, but not all Old Calendarists are True Orthodox. In case of doubt concerning the position of a church, it is assumed the church kept the ideology of the church it left.
The date for the Matthewite schism vary between 1936 and 1937 according to which source you look at. The date for the GOC-Avlona schism is either 2007 or 2010 according to which source you look at.
Not included:
- - en:Autonomous Orthodox Metropolia of North and South America and the British Isles: there is too few information; this blog post claims it came from the Holy Synod of Milan.
- - en:Holy Synod of Milan: too complex, went from the Auxentios synod to the UOC-KP to being independent from what I understand here and on its official website
- - Genuine Greek Orthodox Church of America: diocese of the GOC-Chrysostomos II
- - en:Autonomous Orthodox Metropolis of Ecuador and Latin America: could not find much information; it is a dioceses of the GOC-Avlona
- - en:True Orthodox Metropolis of Germany and Europe: it has apparently always been a diocese of the GOC-Avlona since it joined Eastern Orthodoxy
- - Italo-Greek Orthodox Catholic Archdiocese of the Americas & Canada: the only piece of information about it is this repost from an article and a Facebook page, moreover the website of the Church is dead; there is so few info about this church that its English WP article was deleted.
- - the Church of Akakios (Moukos): its French Wikipedia article was deleted because the only information about this church users were able to find is a brief mention in a LiveJournal post.
- - Genuine Orthodox Church of Greece (Synod of Athanasius): too complex
See the list at
File:Main schisms from the Russian Orthodox Church (2021).svg of other churches which are not included.