The potato - but it's a debatable point.
Raleigh bike
Sir Walter Raleigh's father's name was Walter Raleigh.
His parents were Walter Raleigh and Catherine Champernowne.
Walter Raleigh brought them from the Americas.
Sir Walter Raleigh personality
Sir Walter Raleigh's parents were Walter Raleigh (father) and Katherine Gilbert(mother)
Sir Walter Raleigh personality
Walter Raleigh introduced the potato to Ireland in the late 16th century after encountering it in the New World. However, it was actually the Spanish who first brought the potato to Europe from South America.
Sir Walter Raleigh was born in Devon, England.
from Europe to north carolina to florida and back home to England
The answer usually is thought to be 'tobacco' or 'smoking'. This is however incorrect, for tobacco had been brought to Europe and England long before him. He did however popularize smoking and because he smoked, it became fashionable in 'polite' company.
Where was Walter Raleigh's route