This document summarizes the evolution of the English language from its Proto-Indo-European roots through the various stages of Old English, Middle English, Early Modern English, and Modern English. It traces influences on English from Celtic, Latin, Norse, Norman French, and later global expansions. Key events included the Anglo-Saxon invasion and settlement of Britain in the 5th century AD, Christianization and the influence of Latin in the 7th century, the Norman conquest in the 11th century bringing influence from Norman French, and the standardization of English and introduction of the printing press in the 15th-16th centuries.