So then we have stories like 'Braveheart' about William Wallace in which he died to save Scotland but Scotland isn't free and the story didn't happen.
Joan of Arc has somewhat the same story that ends with here declaring self freed in the name of God.
Stories like this become linked and important again when you get back to the time of Jesus supposed birth.

The crusades are also crucial, and we can understand why knights wore crosses. They were soldiers serving under kings and queens on a quest to secure Jerusalem the Christian holy city from the Muslims who also believe it is their holy city. We see this in movies like kingdom of heaven.

The crusades are mostly rooted the the fear of the Persians invading further west, and they were fueled and fought by Christianity.

This battle continues today, mixed with Judaism's belief that god gave that land to the Jews (hence Isreal). This is the root-line of war and un rest in the world and specifically the middle east today.
So from there we can go back to the times these religions were created or forwards towards our present day.