The historian David McCullough deemed it "a classic, thrilling piece of work [that] can be seen as the beginning of American archeology." It is Incidents of Travel in Central America, Chiapas ...

I only met David McCullough once but we got along swimmingly, I’ll tell you the story.

Tune in live at 2 p.m. ET Wednesday for an online discussion on building social cohesion among young Americans.

David McCullough wrote the essay on Harry Truman for the book Character Above All, published earlier this year by Simon & Schuster. He also appears on the PBS television program adapted from the book.