When Did Christianity Start vs Islam (and Judaism): A Full Timeline Comparison

Judaism is the oldest of the three Abrahamic faiths, with roots stretching back roughly 3,500 years to the covenant God made with Abraham and later formalized through Moses and the Torah. It doesn't have a single dramatic founding moment the way Christianity or Islam do — it developed gradually through patriarchs, prophets, and the Israelite nation. The people of Israel, referenced across the New Testament as a distinct covenant community, are the living context from which both Christianity and Islam would later emerge Acts 13:24.

Rabbinic Judaism as we know it today took shape after the destruction of the Second Temple in 70 CE, when synagogue worship and Torah study replaced the Temple sacrificial system. Jewish tradition holds that God's revelation through Moses and the prophets is complete and sufficient — making the later claims of Christianity and Islam unnecessary additions rather than fulfillments. The circumcision party mentioned in Acts, who challenged Peter in Jerusalem, illustrates how early Jewish believers fiercely guarded the boundaries of covenant identity Acts 11:2.

Christianity began in the 1st century CE, rooted in the life, death, and resurrection of Jesus of Nazareth. Its public launch is typically dated to around 30–33 CE, when Jesus was baptized by John in the Jordan River and began his ministry Mark 1:9. That baptism event, described across all four Gospels, marks the formal start of the movement that would become the world's largest religion. John's prior ministry of repentance-baptism prepared the way, but Jesus himself is understood by Christians as the central, defining figure Acts 13:24.

The term 'Christians' didn't appear immediately — it was coined organically in Antioch, roughly a decade after the crucifixion, when a whole year of teaching and community life made the label stick Acts 11:26. Early Christianity was deeply Jewish in character; debates about circumcision and Torah observance dominated its first decades Acts 11:2. Paul's letters, written in the 50s CE, show a movement already wrestling with its own unity — asking pointed questions like whether Christ himself is divided 1 Corinthians 1:13.

So Christianity's start date is roughly 30–33 CE for Jesus's ministry, with the organized church spreading rapidly through the Roman Empire in the decades following. By the time Islam emerged, Christianity was already a global religion with centuries of theology, councils, and scripture behind it.

Islam began in the early 7th century CE, traditionally dated to 610 CE when the Prophet Muhammad received his first revelation in the Cave of Hira near Mecca. The religion was formally established as a community (Ummah) after Muhammad's migration (Hijra) to Medina in 622 CE — a date so significant it marks Year 1 of the Islamic calendar. Islam thus postdates Christianity by roughly 600 years and Judaism by well over a millennium.

However, Islamic theology insists that Islam isn't a new religion but rather the original, uncorrupted faith of Abraham, Moses, and Jesus — all of whom are honored as prophets. From this perspective, Muhammad is the final prophet (Khatam an-Nabiyyin), sealing a prophetic tradition that includes the people of Israel Acts 13:24 and the followers of Jesus Mark 1:9. The Quran explicitly references John the Baptist (Yahya) and Jesus ('Isa) as honored prophets, placing Islam in direct conversation with the earlier Abrahamic timeline.

The disciples being called Christians in Antioch Acts 11:26 happened roughly 580 years before Muhammad's first revelation — a gap that Islamic scholars note as evidence of religious drift and the need for a final, preserved revelation in the Quran.