Early Christianity began in the 1st century CE, rooted in the teachings of Jesus of Nazareth. His followers, known as disciples, spread his message throughout the Roman Empire. The movement emphasized love, forgiveness, and salvation, attracting diverse groups of people. As the faith grew, early Christians faced persecution from both Jewish authorities and the Roman government. Key figures like Paul of Tarsus played a significant role in spreading Christian beliefs beyond Jewish communities. By the end of the 3rd century, Christianity had established a strong presence, leading to its eventual recognition as a major religion within the Roman Empire.