I think it is correct to say that prior to the great schism there really weren't only two sides in exactly the sense you suggest.
Dating to at least the time of the 1st Ecumenical Council (Nicaea, 325), those Churches which subscribed to the seven Ecumenical Councils were divided administratively into five (5) "Sees": Rome, Constantinople, Alexandria, ...
The anti-Catholic Eurasians in the 1920s.
Archpriest Georges Florovsky (1893-1979) was an Orthodox priest from (Imperial) Russia, who was associated with what theologian Paul Gavrilyuk calls the Eurasian movement.
See Gavrilyuk's essay "Florovsky's Neopatristic Synthesis and the Future Ways of Orthodox Theology", collected in Orthodox Constructions of the ...
In Russia, Bibles for personal reading are in Russian. One have to search to find it in Church Slavonic.
Memorized prayers are in Church Slavonic.
Prayer books, akathists are in Church Slavonic though there are some with translation to Russian. At least one 20th century akathist that I know was written in Russian.
Living of the Saints, Philokalia and ...
Was Eastern-Orthodox liturgical music influenced by Islam?
The short answer is: It is seriously doubtful.
It is seriously doubtful considering that the Prophet Mohammad (c. 570 AD – 8 June 632 AD) only came on to the world scene in the late 6th to early 7th centuries. It may in fact be that the opposite could be true.
The Pre-Byzantium Era
In the ...
Who was Saint Raynerius of Beaulieu?
St. Raynerius was Benedictine monk. He served at Beaulieu, near Limoges, France and died in 967. His feast day is celebrated on February 22.
The above information is about the most you will be able to glean off the internet.
One source has this to add:
Let me introduce you to the Blessed Rainer.
Rainer’s cult ...