The Three Wise Guys:
Orion, a constellation in the south east night sky, is probably the easiest to find. It is named after a mythological Greek hunter. Three stars make the Orion's belt and these stars a called The Three Kings. There is a winter solstice song that goes something like; "We three kings or Orion are..."
There are, depending on the culture, many different stories about the Orion.
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Star of Wonder
The North Star (Polaris) is the star of wonder. All of the other stars circle the Star of Wonder.
A traveler heading in the direction of the North Star was moving north. During the day a traveler headed toward the sunrise was headed east. At night, when you face north at night, you know that south is behind you. When you face east at sunrise you know that west is behind you. It was an early form of GPS used for navigation.
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Winter Solstice
Winter Solstice (December 21st) is the shortest day of the year. On the solstice 'Three Kings of Orian" line up with a star called 'Sirius and they point at the north star. In order to find the difficult to find Star of Wonder you need only locate the easy to find Three Kings of Orion and line them up with 'Sirius'.
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Solstice
Solstice means the sun stands still. On the winter solstice the sun stops moving north and seems to remain stationary for three days before it is reborn and starts moving south. The resurrection of the sun (Son) is now celebrated as a spring time festival but was originally based on the winter solstice.
Orion the Hunter
Orion the hunter, in some versions of the story, has a bow. And on the 24th of December (the solstice) the arrow in the hunters bow points at the spot where the sun will rise. For the next three days the sun seems to stand still and then on the 25th of December the sun (Son of God) is born. This is currently celebrated by some as the birth of the Son (Sun) of God).
Theories
Some theories suggest that when the early Judo-Christians (when explaining messianic ideas to the pagans) either used the pagan mythos as part of the explanation or the pagans understood the messianic ideas according to their own pagan mythos.
In that there were many different pagan myths there were initially many different Christianities. (There still are and each one is the only true one according to the believers). Eventually, after a couple hundred years an emperor named Constantine told the Bishops of the different Christianities to get together and come up with a consistent mythos.
The Bishops came up with three or four different versions of the story and that (as I understand it) became the beginning of the New (syllabus) Testament. Most of the New Syllabus is by or about a early Christian leader named Paul (Saul of Tarsus). He did not invent Christianity but (I Believe) was an actual historical figure who was a major influence on the formation of the religion.
All rubbish I suppose; but as for me and grandpa we believe.
And ...and we have to remember that at the time there was little or no distinction between religion politics and early Christianity was both a political and religious movement.
It is now time for my nap and I have not proof read this post ...and ...and I apologize for any typos or grammatical errors.