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Islam was founded by Muhammad in the 7th century CE, and also widely spread as a universal religion through the early Muslim conquests. Christianity split from Judaism in the 1st century CE, and spread widely as a universal religion after being adopted by the Roman Empire as a state religion in the 4th century CE. It survives in two modern forms through the ethnic religions of Judaism and Samaritanism. Īncient Israelite religion was derived from the ancient Canaanite religion of the Bronze Age, and became firmly monotheistic in the Iron Age, around the 6th century BCE. Notwithstanding this absence of evidence, some archaeologists assert the story of Abraham originated in the 6th century BCE, and that the Book of Genesis does not represent historical events. After a century of archaeological investigation, no contemporary evidence has been unearthed for these historical patriarchs. Jewish tradition claims that the Twelve Tribes of Israel are descended from Abraham through his son Isaac and grandson Jacob, whose sons collectively formed the nation of the Israelites in Canaan Islamic tradition claims that twelve Arab tribes known as the Ishmaelites are descended from Abraham through his son Ishmael in Arabia Bahá'í tradition claims that Baháʼu'lláh was a descendant of Abraham through his wife Keturah.
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The namesake for this group's identity is Abraham, a Hebrew patriarch and prophet who is extensively mentioned in many prominent Abrahamic scriptures, such as the Bible, the Quran, and the Kitáb-i-Aqdas. These most notably include Judaism, Christianity and Islam, as well as the Baháʼí Faith, Samaritanism, the Druze, and others. The Abrahamic religions are a group of monotheistic religions that endorse worship of the God of Abraham. From top to bottom: the Star of David used to represent Judaism, the Christian cross used to represent Christianity, and the star and crescent used to represent Islam. Symbols commonly used to represent the three largest Abrahamic religions.