This is a story of Rollo journey in Switzerland, he had an opportunity to acquire, by actual experience, some knowledge of the nature of the passport system.
Ulysses S. Grant, Theodore Roosevelt, Benvenuto Cellini, Horatio Alger, Jr, Charles Darwin, Jacob Abbott, Frank Lewis Dyer, Victor Hugo, Lytton Strachey, William M. Thayer, W.H.G. Kingston, John G. Nicolay, John T. Morse Jr., Edward Gibbon, Rabindranath Tagore, Oliver Wendell Holmes, John Stuart Mill, Albert Keim, Louis Lumet, Anthony Trollope & John Rae