The great schism resulted largely from a disagreement over

The Great Schism resulted from a disagreement over the Eastern Christian churches and the Western churches after many political and religious conflicts between their leaders; Pope Leo IX from Western churches and the Patriarch of Constantinople, Michael Cerularius from Eastern churches. Their disagreements had as consequence mutual excommunications (lifted in 1964) and a permanent Schism between both churches that gave birth to the Orthodox Church.

bc

explanation:

it teaches readers about an interesting chinese custom and causes them to determine that the minister is trying to be polite