The legendary explorer, soldier, abolitionist and politician, John C. Frémont earned his nickname, “The Pathfinder,” by exploring the American West during the 19th century. Between 1842 and 1849, Frémont led four expeditions throughout the western part of the country, through Oregon, California, Utah, and New Mexico. He explored the Rockies and the route that would become the Oregon Trail. The maps and notes from his expeditions – which were published by Congress and poured over by the media – included detailed descriptions of the plant life, topography of the land and other geological findings.
Following his western expeditions in 1856, Frémont became the first presidential candidate for the new Republican Party. He died in New York City in 1890.