If you have a question about religion, your best bet is to ask an atheist.
According to the Toronto Star atheists are the most well informed about all religions than any religionist.
The survey polled 3,412 Americans who defined themselves in one of nine groups, including atheist/agnostic, Jewish, Mormon, white evangelical Protestant and white mainline Protestant.
The group that garnered the most correct answers on the 32-part questionnaire was atheists and agnostics. As a group, they answered 20.9 questions on the Bible, Christianity, world religions and religion in public life correctly. They were followed by Jews (20.5) and Mormons (20.3).
principled non-believers performed so well because they had deeply considered their choice to opt out of organized religion. They also tended to have higher levels of education..
Amen to all of that, I say.
See other posts on atheism here, here, and here