About the dates of Christmas and Easter (I don’t know who answered):

Because Easter in Christianity is a more ancient holiday than Christmas. Easter was initially linked to the celebration of Peisakh, because in the Gospel of Christ the Tolls were crucified on the day of Peisakh, the Tolls on the day before this (the Gospels themselves differ in this). Since the dates on the solar calendar still nobody knew (they didn't even know what year it was, more precisely, which era this year should be counted), the connection to the lunar calendar was clear. And only in the fourth century the dates of celebrations were broken, so as not to be celebrated together with the Jews (this is exactly how it is formulated in the resolution of the church council). But still the attachment to the first full moon after the spring equinox left. Only the holiday now was to be on Sunday, and in no case to coincide with Paisach (if it coincided, it was postponed to the next full moon).
And the date of Christmas for a long time was not established at all, and different Christian churches celebrated it at different times. According to the solar calendar. There was no Jewish connection to that date.
There is no logic here)))))))