This was a common name in classical Greece, and, due to both the saints who carried it and the favourable meaning, it came into general use in the Christian world, being especially popular among Eastern Christians. It was however rare in Britain before the 19th century. Famous bearers include three tsars of Russia (in the Russian form Fyodor) and American president Theodore Roosevelt (1858-1919).
As an English name it did not become common until after the Protestant Reformation, despite a handful of early examples during the Middle Ages. It was however used earlier on the European continent, being borne by several European royals, such as the 9th-century Judith of Bavaria.
American writers Jack London (1876-1916) and Jack Kerouac (1922-1969) were two famous bearers of this name. It is also borne by the actor Jack Nicholson (1937-) and the golfer Jack Nicklaus (1940-). Apart from Nicklaus, none of these famous bearers were given the name Jack at birth.
In the United Kingdom this form has been bestowed more frequently than John since the 1990s, being the most popular name for boys from 1996 to 2008.
The name was originally used among early Christians in honour of the saint, as opposed to the classical character. In England it was commonly spelled Ellen during the Middle Ages, and the spelling Helen was not regularly used until after the Renaissance. A famous bearer was Helen Keller (1880-1968), an American author and lecturer who was both blind and deaf.
Initially Saint George was primarily revered by Eastern Christians, but returning crusaders brought stories of him to Western Europe and he became the patron of England, Portugal, Catalonia and Aragon. The name was rarely used in England until the German-born George I came to the British throne in the 18th century. Five subsequent British kings have borne the name.
Other famous bearers include two kings of Greece, the composer George Frideric Handel (1685-1759), the first president of the United States, George Washington (1732-1797), and the Pacific explorer George Vancouver (1757-1798). This was also the pen name of authors George Eliot (1819-1880) and George Orwell (1903-1950), real names Mary Anne Evans and Eric Arthur Blair respectively.
This name is also used by Christians in India, notably Saint Thomas Christians in the state of Kerala in the spelling ജോർജ്ജ് (Jōrjj).
The Normans brought the name to England in the 11th century but it quickly died out. It was reintroduced by the German House of Hanover when they inherited the British throne in the 18th century. A famous bearer was Frederick Douglass (1818-1895), an American ex-slave who became a leading advocate of abolition.
The popularity of the name Eleanor in England during the Middle Ages was due to the fame of Eleanor of Aquitaine, as well as two queens of the following century: Eleanor of Provence, the wife of Henry III, and Eleanor of Castile, the wife of Edward I. More recently, it was borne by first lady Eleanor Roosevelt (1884-1962), the wife of American president Franklin Roosevelt.
Famous bearers of the name include the English poet Edmund Spenser (1552-1599), the German-Czech philosopher Edmund Husserl (1859-1938) and New Zealand mountaineer Edmund Hillary (1919-2008), the first person to climb Mount Everest.
As an English name, Benjamin came into general use after the Protestant Reformation. A famous bearer was Benjamin Franklin (1706-1790), an American statesman, inventor, scientist and philosopher.
This name was borne by two 20th-century kings of Belgium. Other famous bearers include the German physicist Albert Einstein (1879-1955), creator of the theory of relativity, and Albert Camus (1913-1960), a French-Algerian writer and philosopher.
In Britain the parallel form Alice, derived via Old French, has historically been more common than Adelaide, though this form did gain some currency in the 19th century due to the popularity of the German-born wife of King William IV, for whom the city of Adelaide in Australia was named in 1836.