Imagine if all knowledge of science and religion was erased suddenly today.

Within a few hundred years science would rediscover everything and it would as it is today.

Since people are gullible, religions would probably pop up, but they would not take the forum of the Bible or the Quoran, or any of the modern cult literature.  They would be completely new religions, created in the same way all modern religions were created - imagination.

This is how I know religion is for the weak minded.