Birth of Jesus.
The most profound historical even in human history, when God came to dwell with us in a human form. The conception of Jesus is the greatest miracle ever known. The bible tells us that the Son of God was implanted by the Holy Spirit.Ghost into the virgin Mary.
She was not penetrated, her waters had not broken and she remained a virgin after Jesus birth going on to have a family with her husband Joseph the Carpenter.
Luke 1:46-56.
Ask me and I will tell you! 