The Norman conquest of England in 1066 marked the beginning of the Middle English period. The Norman French became the new ruling class and ruling language over the next 200 years, leaving a significant influence on English vocabulary, society, and culture. Middle English had a simpler grammar compared to Old English, with changes like pronouns starting with "th" instead of "h". The Normans introduced over 10,000 words to English, especially terms related to government, law, war, and high society. Their influence combined French and English elements and reflected in clothing styles as well.