I'm perplexed as to why the Bible isn't allowed to...

I'm perplexed as to why the Bible isn't allowed to be read before a History class? That book is full of so much great History. In addition, did I miss religion being taken out of the protected classes? Are we suddenly being censored, Its not like the young man got up in front of the class and started ministering, just reading a book, no big deal... move along.