" That the two religions were engaged in a contested Passover–Easter dialogue at this formative moment is not in doubt. Even after the Council of Nicaea in 325, with Constantine himself present, separated out the two holidays and made sure that should they fall on the same day it would be the Jews who moved their Passover, that combative dialogue continued. "
― Simon Schama , The Story of the Jews: Finding the Words, 1000 BCE – 1492 CE