This being April Fools day I thought the following piece of Arizona History to be particulary fitting.
In March, 1880 the Southern Pacific Railroad reached Tucson, Arizona. A huge celebration was held to commemorate the event. The entire town joined in and the beer and liquor was flowing freely. Local officials began sending self-congratulatory telegrams to various towns and notable people around the country. At some point, someone convinced Tucson mayor Bob Leatherwood that it would be fitting to send a telegram to the pope. Leatherwood thought that this was a great idea. The wire, composed by Leatherwood was as follows:
To his holiness, the Pope of Rome, Italy:
The mayor of Tucson begs the honor of reminding Your Holiness that this ancient and honorable pueblo was founded by the Spaniards under the sanction of your church more than three centuries ago, and to inform Your Holiness that a railroad from San Francisco, California now connects us with the entire Christian world.
R. N. Leatherwood, Major.
A short time later, Mayor Leatherwood was informed that the pope had telegraphed a reply. He was handed a piece of paper and told that it contained the pope’s message. Believing this to be an actual telegram from the pope, the mayor held it up and read it out loud as a crowd listened intently. The telegram read:
His Holiness the Pope acknowledges with appreciation receipt of your telegram informing him that the ancient city of Tucson at last has been connected by rail with the outside world and send his benediction, but for his own satisfaction would ask where the hell is Tucson? – Antonelli

Needless to say a roar of laughter probably erupted from the crowd.
It is assumed that that pope’s “reply” was a joke being played on the mayor.
Source: Arizona, A Cavalcade of History, Marshall Trimble – who tells the story much better than I can. (Picture of Tucson Train Depot from Southern Arizona Transportation Museum website.)