The town was full of people because of the Roman census. There may well have been a Jewish feast happening at the same time. One of the few private places available for Jesus' birth was were the animals were housed. After He was born Mary wraps Him in a soft cloth and places Him in the animals' manger which serves as His crib, or cradle.
Jesus was born He died on a cross and rose again on the third day and He was the Messiah and Son of God and He will return as a reining King.
Genesis 3:14-14 talks about this birth and the book of Revelation talks about his final triumph over Satan.
The Birth of Jesus
6 While they were there, the time came for the
baby to be born, 7 and she gave birth to her firstborn,
a son. She wrapped him in cloths and placed him in a manger, because there
was no room for them in the inn.
The Birth of Jesus
This is how the birth of Jesus Christ came about: His mother Mary was pledged to be married to Joseph, but before they came together, she was found to be with child through the Holy Spirit. 19 Because Joseph her husband was a righteous man and did not want to expose her to public disgrace, he had in mind to divorce her quietly.
20 But after he had considered this, an angel of the Lord appeared to him in a dream and said, "Joseph son of David, do not be afraid to take Mary home as your wife, because what is conceived in her is from the Holy Spirit. 21 She will give birth to a son, and you are to give him the name Jesus, because he will save his people from their sins."
22 All this took place to fulfill what the Lord had said through the prophet: 23 "The virgin will be with child and will give birth to a son, and they will call him Immanuel"-which means, "God with us."
24 When Joseph woke up, he did what the angel of
the Lord had commanded him and took Mary home as his wife. 25 But he had no union with her until she gave birth to
a son. And he gave him the name Jesus.
Jesus was born as a baby and then had to grow up as any baby does to become an adult.
Jesus was born in a feeding place (Greek Phatane - feeding place) were animals lived. Possibly the only private place in a town were many where living in the open. They had come because of the Roman census or head count. They would all go back to their home towns in a few days time.
The custom at a birth of a child born in a house. The musicians played at a birth of a boy but went away without playing if it was a girl. Jesus was born in a common courtyard not a house. So no musicians on hand but God provided heavenly musicians eg Angels who told the shepherds who then went to visit the newly born baby.
Tradition has Jesus born in a stable. More likely place was a rock cave for animals or a sheep pen with three sides. May be he also was born about the feast of Sukkot also called the Feast of Ingathering or the Feast of Booths.
The family tree of Jesus in Matthew is through the Legal line and in Luke through the Blood line.