Final answer:
The best evidence for Jesus's existence is found in the New Testament Gospels, which detail his life and the beliefs of his followers. While extra-biblical historical evidence is limited, the significant cultural and historical impact of Jesus's teachings and his disciples' work is well-documented.
Step-by-step explanation:
The best evidence to establish that Jesus walked the earth comes from historical texts, particularly the Gospels of Matthew, Mark, Luke, and John in the New Testament. These documents recount Jesus's life, teachings, crucifixion, and his followers' claims of his resurrection and ascension into heaven. However, apart from the biblical accounts, there is minimal historical evidence for Jesus's existence. Most of our knowledge about him relies on the context provided by the cultural and political situation of Jerusalem in the first century.
Historical study of Jesus typically looks at the impact of his teachings and the movement that formed after his death, led by his disciples. These disciples or apostles spread his message far and wide, which ultimately laid the foundation for Christianity. The concept of Jesus as 'Christ', meaning messiah or savior, is a significant element in this faith tradition. When investigating historical figures like Jesus, it is common to prioritize natural explanations for events, analyzing available evidence before considering miraculous or supernatural claims.