As an English name, Aaron has been in use since the Protestant Reformation. This name was borne by the American politician Aaron Burr (1756-1836), notable for killing Alexander Hamilton in a duel.
The name became regularly used in the Christian world due to the fame of Saint Anthony the Great, a 4th-century Egyptian hermit who founded Christian monasticism. Its popularity was reinforced in the Middle Ages by the 13th-century Saint Anthony of Padua, the patron saint of Portugal. It has been commonly (but incorrectly) associated with Greek ἄνθος (anthos) meaning "flower", which resulted in the addition of the h to this spelling in the 17th century.
As an English given name, Christopher has been in general use since the 15th century. It became very popular in the second half of the 20th century, reaching the top of the charts for England and Wales in the 1980s, and nearing it in the United States.
In Denmark this name was borne by three kings (their names are usually spelled Christoffer), including the 15th-century Christopher of Bavaria who also ruled Norway and Sweden. Other famous bearers include Italian explorer Christopher Columbus (1451-1506), English playwright Christopher Marlowe (1564-1593), English architect Christopher Wren (1632-1723) and the fictional character Christopher Robin from A. A. Milne's Winnie-the-Pooh books.
This common Norse name was first brought to England by Danish settlers during the Anglo-Saxon period. It was not popular in England in the Middle Ages, but it was revived in the 19th century, in part due to the children's novel Eric, or Little by Little (1858) by Frederic William Farrar.
After the Protestant Reformation it was occasionally used as a given name in the English-speaking world, and it became somewhat common in America due to the fame of the revolutionary Ethan Allen (1738-1789). It only became popular towards the end of the 20th century. It is the name of the main character in Edith Wharton's novel Ethan Frome (1911), about a man in love with his wife's cousin.
This name has been used occasionally in England since the 12th century. It was not common in the English-speaking world until the end of the 20th century.
Due to the renown of the saints by this name, Gregory (in various spellings) has remained common in the Christian world through the Middle Ages and to the present day. It has been used in England since the 12th century. A famous bearer from the modern era was American actor Gregory Peck (1916-2003).
As an English Christian name, Levi came into use after the Protestant Reformation.
This name became very popular in the second half of the 20th century. It reached the top ten names for boys in France (by 1997), Belgium (1998), Denmark (2003), Canada (2008), the Netherlands (2009), New Zealand (2009), Australia (2010), Scotland (2013), Spain (2015) and the United States (2018).
This was the name of kings of England, Serbia, and Poland, as well as ten popes. It was also borne by the first Christian king of Hungary (11th century), who is regarded as the patron saint of that country. More recent bearers include British physicist Stephen Hawking (1942-2018) and the American author Stephen King (1947-).
In England the name was used by the Normans and became very popular due to Saint Thomas Becket, a 12th-century archbishop of Canterbury and martyr. It was reliably among the top five most common English names for boys from the 13th to the 19th century, and it has remained consistently popular to this day.
Another notable saint by this name was the 13th-century Italian philosopher and theologian Thomas Aquinas, who is regarded as a Doctor of the Church. Other famous bearers include philosopher Thomas Hobbes (1588-1679), American president Thomas Jefferson (1743-1826), novelist Thomas Hardy (1840-1928), and inventor Thomas Edison (1847-1931).