David Barton says Americans have been misled about their history. And he aims to change that.

"It's what I would call historical reclamation," Barton explains, in his soft but rapid-fire voice. "We're just trying to get history back to where it's accurate. If you're going to use history, get it right."

Barton has collected 100,000 documents from before 1812 — original or certified copies of letters, sermons, newspaper articles and official documents of the Founding Fathers. He says they prove that the Founding Fathers were deeply religious men who built America on Christian ideas — something you never learn in school.