|Behind the scenes|
Calvin Coolidge was the 30th President of the United States. He was briefly mentioned in National Treasure: Book of Secrets.
President Calvin Coolidge found a Wood Carving inside the Resolute Desk, he had a photograph taken of the blank, and the blank destroyed. He then wrote in the Book of Secrets of the events. He then commissioned Gutzon Borglum to destroy the sacred site in Black Hills, where no Mount Rushmore in located.