A passport is a travel document that says that the person carrying it is a citizen of the country on the passport. A passport asks that the person carrying it be allowed to enter and pass through other countries. They also allow a person to re-enter their country. Passports are given by national governments.
Passports usually have a person's picture, signature, date of birth, nationality. Many countries are now making passports with biometric properties. This helps confirm that the person carrying a passport is the real owner. These countries have passports that use biometrics: Malaysia, Australia, Greece, New Zealand, Japan, Portugal, Sweden, the United Kingdom, the United States, Germany, Ireland, Poland, Italy, Slovenia, Singapore and Thailand.
In 1920, the International Conference on Passports, Customs Formalities and Through Tickets made a law that said passports must be issued in French and at least one other language. Now, many countries issue passports in English and the language(s) of the issuing country.
- Lloyd, Martin (2003). The Passport: The History of Man's Most Travelled Document. Stroud, UK: Sutton Publishing. ISBN 0-7509-2964-2.
- Salter, Mark B. (2003). "Rights of Passage: The Passport in International Relations." Boulder: Lynne Rienner.
- Torpey, John (2000). "The Invention of the Passport: Surveillance, Citizenship, and the State." Cambridge: Cambridge University Press.