what features do islam and christianity have in common?
Abrahamic religions
neutral
 = = = = Relationship between the West and Muslims = = = = 

entailment
 Religion and infidelity , and stories that are related , and a Revelation that is cited as authority , and a Pentateuch and a Gospel . 

entailment
 Christianity was a major unifying factor between Eastern and Western Europe before the Arab conquests , but the conquest of North Africa sundered maritime connections between those areas . Increasingly the Byzantine Church differed in language , practices , and liturgy from the western Church . The eastern church used Greek instead of the western Latin . Theological and political differences emerged , and by the early and middle 8th century issues such as iconoclasm , clerical marriage , and state control of the church had widened to the extent that the cultural and religious differences were greater than the similarities . The formal break came in 1054 , when the papacy and the patriarchy of Constantinople clashed over papal supremacy and excommunicated each other , which led to the division of Christianity into two churches — the western branch became the Roman Catholic Church and the eastern branch the Orthodox Church . 

contradiction
 = = Early life and Nation of Islam = = 

neutral
 = = = Muslim and Christian Iberia = = = 
