In England Oliver was a common medieval name, however it became rare after the 17th century because of the military commander Oliver Cromwell, who ruled the country following the civil war. The name was revived in the 19th century, perhaps due in part to the title character in Charles Dickens' novel Oliver Twist (1838), about a poor orphan living on the streets of London. It became very popular at the beginning of the 21st century, reaching the top rank for boys in England and Wales in 2009 and entering the top ten in the United States in 2017.
In the Middle Ages, Joseph was a common Jewish name, being less frequent among Christians. In the late Middle Ages Saint Joseph became more highly revered, and the name became popular in Spain and Italy. In England it became common after the Protestant Reformation. In the United States it has stayed within the top 25 names for boys since 1880, making it one of the most enduringly popular names of this era.
This name was borne by rulers of the Holy Roman Empire and Portugal. Other notable bearers include Austrian composer Joseph Haydn (1732-1809), the founder of Mormonism Joseph Smith (1805-1844), Polish-British author Joseph Conrad (1857-1924) and Soviet dictator Joseph Stalin (1878-1953).
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.
Outside of its Brazilian usage, the name was popularised by Brazilian racing driver Ayrton Senna (1960-1994), starting after his first win at the 1985 Portuguese Grand Prix and increasing (or, in some cases, peaking) shortly after his death.
Current usage is influenced by the name of a Californian metal-core band named after the hero in 'The neverending story'.