Hinduism and other religions and medieval times. Islam is a strictly monotheistic religion in which the supreme deity is Allah ( : see God in Islam), the last Islamic prophet being Muhammad ibn Abdullah, whom Muslims believe delivered the Islamic scripture, the Qur'an. Hinduism mostly shares common terms with the other Indian religions, including Buddhism, Jainism and Sikhism. Islam shares common characteristics with Abrahamic religions–those religions claiming descent from the prophet Abraham–being, from oldest to youngest, Judaism, Christianity, Islam. The Qur'an is the primary Islamic scripture. Muslims believe it to be the verbatim, uncreated word of Allah. Second to this in religious authority, and
Split of Christianity and Judaism CE there were not yet two separate religions called 'Judaism' and 'Christianity'". Most historians agree that Jesus or his followers established a new Jewish sect, one that attracted both Jewish and gentile converts. According to New Testament scholar Bart D. Ehrman, a number of early Christianities existed in the first century CE, from which developed various Christian traditions and denominations, including proto-orthodoxy. According to theologian James D. G. Dunn, four types of early Christianity can be discerned: Jewish Christianity, Hellenistic Christianity, Apocalyptic Christianity, and early Catholicism. The first followers of Jesus were essentially all ethnically Jewish or Jewish proselytes. Jesus