He is risen! (an occurrence in history)

Christianity rests on the certainty of Jesus’ resurrection as a space-time occurrence in history. All four Gospels highlight it, focusing on the empty tomb and resurrection appearances, and Acts insists on it (Acts 1:3; 2:24-35; 3:15; 4:10; 5:30-32; 13:33-37). Jesus’ resurrection demonstrated his victory over death, vindicated him as righteous, and indicated his divine identity. It led on to his ascension and his present heavenly reign. It guarantees the believer’s present forgiveness and justification and is the basis of life for the believer here and now.

-- J. I. Packer

[Hat tip to JM]