Jesus died roughly 2000 years ago in a city called Jerusalem (most of Jerusalem is in the modern country of Israel). The people who killed him did so because they believed that he was causing trouble for the government and because he was claiming to be the Messiah. When they crucified him (meaning they nailed him to a cross), they even hung a sign over his head, which said, "King of the Jews." The day he was crucified is known by Christians as Good Friday.