Named the Greatest Briton of all time in a 2002 poll, Winston Churchill is among the most influential people in British history, consistently ranking well in opinion polls of Prime Ministers of the United Kingdom. His highly complex legacy continues to stimulate intense debate amongst writers and historians. In 1963, he was the first of only eight people to be made an honorary citizen of the United States.

A person of exceptional merit, generally a non-United States citizen, may be declared an honorary citizen of the United States by an Act of Congress or by a proclamation issued by the President of the United States, pursuant to authorization granted by Congress.

Eight people have been so honored, six posthumously, and two, Sir Winston Churchill and Mother Teresa, during their lifetimes.

Honorary citizenship should not be confused with citizenship or permanent residency bestowed by a private bill. Private bills are, on rare occasions, used to provide relief to individuals, often in immigration cases, and are also passed by Congress and signed into law by the President. One such statute, granting Elián González US citizenship, was suggested in 1999, but was never enacted.

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