schism.....
The East–West Schism, commonly referred to as the Great Schism of 1054, is the break of communion between what are now the Eastern Orthodox and Catholic Churches, which began in the 11th century and continues.
The split between the Eastern Orthodox and the western Catholic Churches was caused by a number of different factors. Namely, neither side could decide on the Pope's role in the church, or the scope of his authority.
Your question is too general. There are many things that were not a cause of tension between these belief systems. The colour of my dog for instance
The Great Schism was between the Roman Catholic Church and the Eastern Orthodox Church (or Catholicism and Eastern Orthodox).
To differentiate between Eastern Orthodox, Oriental Orthodox, Assyrian Church of the East one would use Roman Catholic.
Both began as forms of European Christianity. -Apex- :)
The Roman Catholic Church is normally known for using fresco's and Statues in their churches. Whereas The Eastern Orthodox Church uses mosaics and icons, with a small percentage of the time they will also use fresco's .
Christianity was split between the roman catholic church and the eastern orthodox church
Short answer: it was one of the causes of the split between the western and eastern Christian churches. The result of the split (schism) is the Catholic church (western) and Orthodox church (eastern).
Roman Catholics believe in Papal Primacy, Papal Infallibility, the Immaculate Conception, and Purgatory while Eastern Orthodox people do not. Roman Catholics believe that the Holy Spirit proceeds from the Father and the Son, while Eastern Orthodox people believe that the Holy Spirit only proceeds from the Father.
There are several theological and political factors, but primarily the authority of the Pope