The Resurrection is the only thing that makes sense of what happened in the 2nd 1/2 of the 2st century.
These were not dark-age rubes. The Roman empire was populated by very sophisticated cosmopolitans. Gentiles put resurrection myths in the same category as today’s secular humanists do. Jews were scattered throughout & comprised about 10% of empire’s population, mostly urban. Although the Jews believed there would be a general resurrection at the end of time, they had no reason to expect for an isolated specific resurrection in the middle of history. Other Messianic claimants had come & gone and their claims died with them or were passed to their heirs.
No one – NO ONE – not Greek, Jew, nor Roman had any reason to expect or even wish for a Resurrection.
It shocked Jew & Gentile alike, & turned everything upside down.