Interesting story. You have to wonder if the "Christmas" star was a supernova like this one. It suddenly appears, becomes visible during the day for a few weeks, then slowly vanishes for about a year.
There was a sci-fi short story about this, in which a team of explorers found the Christmas star...and the remnants of the civilization which wiped out as a consequence.
or, whether it actually happened. no other cultures with astronomical knowledge have ever been found to have reported on such a star ~2000 years ago. if there was a sighting visible in the med region, it was likely an asteroid or, possibly, Jupiter.
I saw that article. If you read a little further, the position of the comet couldn't have led the so-called wisemen to Bethleham (yet another apocryphal tale). So, still no other cultures.