Middle English emerged after the Norman Conquest of 1066, blending Old English with French influences. This period, spanning the late 11th to 15th centuries, saw significant changes in vocabulary, grammar, and pronunciation, reflecting the era's political and cultural shifts. The language evolved from Old English, incorporating French and Norse elements. It simplified inflections, lost grammatical gender, and adopted new vocabulary. This transformation laid the foundation for Modern English, with many Middle English words and structures still in use today.