Final answer:
Middle English developed after the Norman Conquest, which was a significant event in 1066 that affected the English language and introduced Norman French influences.
Step-by-step explanation:
Middle English developed some time after the Norman Conquest. It arose after the influential event in 1066 when William, Duke of Normandy, won the Battle of Hastings and took control of the English throne. This event had profound impacts on the English language, bringing in a wealth of Norman French vocabulary and changing the linguistic landscape of England. Middle English is the form of English that was spoken after the Norman Conquest up until around the late 15th century. Scholars mark the emergence of Early Modern English at the beginning of the Renaissance period.