Who is the founder of English?

English is a language, there is no so-called founder, only the origin and development of the language.

Early Germanic tribes (Angles, Saxons, Jutes and Frisians) immigrated to England, and English was passed down from their language changes. According to the Anglo-Saxon Chronicle, around 449 AD, King Votigan of the British Isles invited "Anglo-Saxon relatives" to help him fight against the Picts. In return, he gave the territory to the southeast corner. Then he sought further support, and Saxons, Angles and Jutes came one after another. Chronicles record that these "immigrants" eventually established seven kingdoms: Northumbria, Mercia, East Anglia, Kent, Essex, Sussex and Wessex. After the Germanic invasion, they ruled the local Celts, and the local languages mainly remained in Scotland, Wales, Cornwall and Ireland. The language of these invaders gradually formed "Old English", which is very similar to modern Frisian. English, England and East Anglia are three words developed from the vocabulary describing the Angles: English, Angelcynn and English Alan. 1066 for 300 years after the Norman conquest, the king of England only spoke French. So a large number of French words entered Old English, and Old English itself lost most of its twists and turns and evolved into Middle English. The vowel movement around 1500 transforms Middle English into modern English. The most famous literary work in Old English is Beowulf, while the most famous literary work in Middle English is Canterbury Tales. Modern English began to flourish in Shakespeare's time. Some scholars divided it into early modern English and late modern English, and the dividing line was about 1800. With the British occupation and colonization of most parts of the world, the local language has greatly influenced the development of English.