Early Christianity began in the 1st century AD, rooted in the teachings of Jesus Christ, a Jewish preacher. His followers, known as disciples, spread his message of love, forgiveness, and salvation. After his crucifixion, the movement grew rapidly, especially in the Roman Empire, as people sought hope and community. As the faith expanded, early Christians faced persecution for their beliefs. They gathered in secret, sharing stories and teachings, which eventually led to the formation of the New Testament. Key figures like Paul the Apostle played a significant role in spreading Christianity beyond Jewish communities, establishing it as a major world religion.