The Christmas before Christmas was originally on Solstice Day throughout Persian Empire or Iran.

Yaldā Night this Thursday: (Persian: شب یلدا shab-e yalda) or Chelle Night (also Chellah Night, Persian: شب چلّه shab-e chelle) is an ancient festival in Iran, Iraqi Kurdistan, Afghanistan, Azerbaijan, and Turkey celebrated on the Solstice by Iranians all over the world. This corresponds to the night of December 20/21 (±1) in the Gregorian calendar, and to the night between the last day of the ninth month (Azar) and the first day of the tenth month (Dey)of the Iranian solar calendar. Jesus Christ was born on the first longer day called Yalda.

https://en.m.wikipedia.org/wiki/Yald%C4%81_Night

The three wise men were Iranian astrologers who predicted the exact alignment of the planets. They knew the birth would be special. Christianity was invented by Iranians.