I'm a writer. When I write, I try to research my subject thoroughly.
When Luke, who was a doctor, set out to write the story of Jesus' life that we find in the Bible, he was scrupulous in his research. Here is how he starts the story, 'Many have undertaken to draw up an account of the things that have been fulfilled among us, just as they were handed down to us by those who from the first were eye-witnesses ... Therefore, since I myself have carefully investigated everything from the beginning, it seemed good also to me to write an orderly account for you ... so that you may know the certainty of the things you have been taught.'
Only then does he begin his account with the story of Jesus' birth. The gospels in the Bible are not fairy tales, they are hard facts, carefully researched and kept over all these long years for us to read today.
(see Luke 1:1-4)