great schism

What if, contemporarily to the ecumenical council of 870 in Constantinople, Ermengarde of Italy and Constantine of Byzantium formalized their marriage and created a solid bond between the kingdom of Italy and the Eastern Romans? This would pacify the orthodox extremists who claimed Charlemagne...

After reading about Greco-Catholics I was left wondering: is that possible for some sort of Orthodoxy but with Latin rites to exist? Apparently, it is. I haven't read more than just a page on Wikipedia, though. But it seems that the Western Rite Orthodoxy originated/developed in 19th century. So...

Obviously as the location of the city of Rome, empires claiming to be successors of the empire have tried to retake the city itself. The Byzantines were able to reclaim the peninsula temporarily but lost it to the Lombards and the Pope after separating the church ruled the city for centuries...

Christians of the North: A Tale of Celtic Christianity Prologue: They Are Barbarians *** Little antlered one, little belling one, melodious little bleater, sweet the lowing that you make in the glen. Apple tree, little apple tree, violently everyone shakes you. Rowan, little berried one...

Justinian and Bellesarius(?) Are famous for reconquering vast swathes of the old empire, namely italy and north africa, but it bankrupted the empire to do and left them open to Persian and Islamic rushes in relatively short succession. What if instead, Justinian conquered italy (tbh bringing...

What if the great schism of 1054AD didn't happen? Though the two "grew apart" rather than a decision being made, how would the world have developed? What would it look like today? (Between the Eastern Orthodox Church, and the Roman Catholic Church)