Gulliver's Travels follows Lemuel Gulliver, a surgeon from England, as he embarks on four voyages, each beginning with a shipwreck that lands him in fantastical lands. In the first two voyages, he is marooned among populations of either tiny people or giants. The third finds him rescued by a floating island of irrational mathematicians. The fourth exposes the brutish nature of humans as contrasted with the rational horses who govern their land. Through these journeys, Swift satirizes 18th century politics, human nature, and societal norms.