What was Walter Raleighs major achievements?

Walter Raleigh was an English explorer, soldier, and writer known for his significant contributions to the English colonization of the Americas. He is best remembered for his attempts to establish the Roanoke Colony in present-day North Carolina, which, although ultimately unsuccessful, marked England's first foray into the New World. Additionally, Raleigh played a key role in popularizing tobacco in England and was a notable courtier under Queen Elizabeth I. His literary works, including "The History of the World," also contributed to his legacy as a writer and thinker.