English literature is literature written in the English language from the English-speaking world. The English language has developed over more than 1,400 years. The earliest forms of English, a set of Anglo-Frisian dialects brought to Great Britain by Anglo-Saxon settlers in the fifth century, are called Old English. Beowulf is the most famous work in Old English. Despite being set in Scandinavia, it has achieved national epic status in England. However, following the Norman Conquest of England in 1066, the written form of the Anglo-Saxon language became less common. Under the influence of the new aristocracy, French became the standard language of courts, parliament, and polite society. The English spoken after the Normans came is known as Middle English. This form of English lasted until the 1470s, when the Chancery Standard, a London-based form of English, became widespread. Geoffrey Chaucer, author of The Canterbury Tales, was a significant figure developing the legitimacy of vernacular Middle English at a time when the dominant literary languages in England were still French and Latin. The invention of the printing press by Johannes Gutenberg in 1439 also helped to standardise the language, as did the King James Bible (1611), and the Great Vowel Shift.