Introduction. St. Patrick, the patron saint of Ireland, is one of Christianityâs most widely known figures. But for all his celebrity, his life remains somewhat of a mystery.
In general, passport and visa are two terms often used in connection with foreign travel. There is a lot of difference between the two terms. One of the main differences between passport and visa is that the passport is a travel document whereas the visa is a kind of permission. This article attempts to clarify the difference between a passport and a visa by way of explaining what each item is and the purpose of it.
A passport is an internationally recognized travel document that verifies the identity and nationality of the bearer. A valid U.S. passport is required to enter and leave most foreign countries. All U.S. citizens, including dual nationals, must enter the United States on a U.S. passport.