The republic's Christian founders made it clear that no faith should have a privileged position in America and that religion should not intrude in the workings of government.
Courts have weighed in on this issue, notably in the Scopes "Monkey Trial" of 1925, where defense lawyer Clarence Darrow questioned William Jennings Bryan about the Bible.
A century ago, journalists gathered in Dayton, Tennessee, to witness the trial of John T. Scopes, a 24-year-old high school science instructor accused of teaching Charles Darwin's theory of evolution, which was against Tennessee law at the time.
The "monkey trial" continues to haunt us.
As H.L. Mencken of the Baltimore Sun described it, the trial was a significant event that drew conclusions based on the interpretation of facts and data.
Author's summary: Faith and science collide in America.