Raleigh, Walter

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English adventurer, writer, and courtier to Queen Elizabeth I. He organized expeditions to colonize North America 1584–87, all unsuccessful, and made exploratory voyages to South America in 1595 and 1616. His aggressive actions against Spanish interests, including attacks on Spanish ports, brought him into conflict with the pacific James I. He was imprisoned for treason 1603–16 and executed on his return from an unsuccessful final expedition to South America. He is traditionally credited with introducing the potato to Europe and popularizing the use of tobacco.

Born in Devon, England, Raleigh became a confidant of Queen Elizabeth I and was knighted in 1584. He led a gold-seeking expedition to the Orinoco River in South America in 1595 (described in his Discoverie of Guiana of 1596).

After James I's accession to the English throne in 1603, Raleigh was condemned to death on a charge of conspiracy, but was reprieved and imprisoned in the Tower of London, where he wrote his unfinished History of the World. Released in 1616 to lead a second expedition to the Orinoco, which failed disastrously, he was beheaded on his return under the charges of his former sentence.