Men from the east known as Magi acquired the knowledge through God's celestial messaging system!Note: Before reading this page it is HIGHLY RECOMMENDED that you read and understand Celestial Signs and the Basis for Biblical Astronomy.
In the account of our Lord's birth, we learn of two distinct groups of people who were knowledgeable about the timing of this very significant event (excepting Mary, Joseph and a few others).The shepherds of Luke 2:8 were told of the birth while they were in the fields near Bethlehem by the angel Gabriel.These men were astronomers called Magi, and there were very likely many more than three of them.In those days, three wealthy men would have been easy prey for bandits. These men, however many there were, arrived in Bethlehem when the child was perhaps around 15 months old.The Magi who visited the Christ child would have been followers of another sect, "biblical astronomers," if you will, who continued to follow a more pure form of doctrine.
In around 537 BC, the Medes and Persians conquered Babylon.Then they opened their treasures and presented him with gifts of gold and of incense and of myrrh.12 And having been warned in a dream not to go back to Herod, they returned to their country by another route.It was not a natural phenomena, but supernatural, angelic, as I show in this writing called What Was it That is Called the Star of Bethlehem.There was, in addition to the role "his star" played, numerous celestial signs involving the lights of a more commonly seen nature. If you have already studied these matters and seem to be satisfied, but are not convinced that our Lord Jesus Christ was born on the holy day Rosh Ha Shanah (Yom Teruah) on September 29 in 2 BC, again, keep reading!