The Great Schism was between the Roman Catholic Church and the Greek Orthodox Church.
The Great Schism refers to a conflictive religious event that occurred in 1054. In this conflict there was a mutual rupture and excommunication between the highest hierarch of the Catholic Church in Rome, the Pope or Bishop of Rome (together with the Christianity of Occident), and the ecclesiastical hierarchies of the Orthodox Church (together with the Christianity of the East) especially the principal of them, the Ecumenical Patriarch of Constantinople.
Such shared features include architecture, frescoes, pottery, jewellery, weaponry, and of course, the Greek language and writing in the form of Linear B an adaptation of the Minoan Linear A).
I don't know where it is but it is important because it has a lot of water and most people needs it
The allied powers used land as their mail gorund to fight on while the germans used the sea as a sneek attack bc the allied powers didn't see it coming that is how the ussr was sank bc of a surpisre attack from the Germans .
Three aspects would technology, goverment and cultural diffusion hope this helps
