What did Queen Elizabeth of England knighted Sir Francis Drake for?

Queen Elizabeth I knighted Sir Francis Drake primarily for his successful circumnavigation of the globe between 1577 and 1580, which made him the first Englishman to achieve this feat. Additionally, he was recognized for his role in raiding Spanish ships and settlements, which bolstered England's naval power and wealth. His accomplishments significantly contributed to England's stature as a maritime nation during the late 16th century.