When you studied ancient history, you studied Greek mythology and Roman gods and goddesses didn't you?
How condfident are you that those were actual occurences?
I was never taught that Greek and Roman deities actually existed, just that they were the basis of Classical religion.
Are you proposing teaching that Adam & Eve existed as historical fact?
Studying Genesis as a mythological-religious text in history class would draw no protest from me. Presenting Adam & Eve/Noah's Flood as actual historical events would.