What impact have both islam and christanity had on world history?

Christianity and Islam share a historical and traditional connection, with some stark theological differences. The two faiths share a common origin in the Middle East, consider themselves to be monotheistic, and are Abrahamic religions.

Muslims have a range of views on Christianity, often considering Christians and Jews to be People of the Book or as asheretics. Christian views on Islam are diverse and range from considering Islam a fellow Abrahamic religion worshipping the same God, to believing Islam to be heresy or an unrelated cult. Christianity and Islam both consider Jesus to have been sent by God. Christians generally consider Jesus to be the Son of God, while Muslims consider the Trinity to be a division of God's Oneness and a grave sin.

Christianity and Islam have different scriptures, with Islam using the Quran and Christianity the Bible. Both texts offer an account of the life and works of Jesus. Belief in Jesus is an important part of Islamic theology, and Muslims view the Christian Gospels as altered, while Christians consider Gospels to be authoritative and the Quran to be a later, fabricated or apocryphal work. Both religions believe in the virgin birth of Jesus, but the Biblical and Quranic accounts differ.

Historically, Christianity and Islam have both peacefully co-existed and engaged in extended periods of warfare. Western (secular and Christian) and Islamic histories offer differing accounts of both periods of tolerance and violence.