In England, Sarah came into use after the Protestant Reformation. It was consistently popular in the 20th century throughout the English-speaking world, reaching the top of the charts for England and Wales in the 1970s and 80s.
Notable bearers include Sarah Churchill (1660-1744), an influential British duchess and a close friend of Queen Anne, and the French actress Sarah Bernhardt (1844-1923).
A notable bearer was the American musician Miles Davis (1926-1991). In Scotland this name was historically used to Anglicize Maoilios.
In Greek mythology, Megara was the oldest daughter of Creon, king of Thebes. In reward for Heracles' defending Thebes from the Minyans at Orchomenus in single-handed battle, Creon offered his daughter Megara to Heracles. She bore him a son and a daughter, whom Heracles killed when Hera struck him with temporary madness. In some sources Heracles slew Megara too, in others, she was given to Iolaus when Heracles left Thebes forever.
In the Disney animated film Hercules, Megara, also called Meg, is a young woman who was a pawn for the Lord of the Underworld, Hades. Sometime during the events of Hercules, Meg went to Hades and sold her soul to revive a lover of hers who had died. Hades agreed on the condition that she serve him forever, which she accepted. However, shortly after her lover was revived, he fell in love with someone else and ungratefully left Meg locked in servitude to Hades. This background story of the character alludes to the myth of Alcestis, who dies by proxy for her husband Admetus.
Jonah's story was popular in the Middle Ages, and the Hellenized form Jonas was occasionally used in England. The form Jonah did not become common until after the Protestant Reformation.
The name was popular in France during the Middle Ages (the more common French form is Gisèle). Though it became known in the English-speaking world due to Adolphe Adam's ballet Giselle (1841), it was not regularly used until the 20th century.
This name began to be used in America in the 1970s, possibly inspired by Princess Aisha of Jordan (1968-), the daughter of King Hussein and his British-born wife. It received a boost in popularity after Stevie Wonder used it for his first daughter in 1975.