East-West Schism or The Great Schism, the split between the Roman Catholic Church and the Eastern Orthodox Church in the eleventh century
The Western Schism, a split within the Roman Catholic Church from 1378 to 1417, at the climax of which three men contested the Papacy.
Photian Schism, a controversy lasting from 863-867 between Eastern and Western Christianity.
Sport
The Schism, the disagreement that lead to the split between rugby league and rugby union over the issue of "broken time" payments
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