term first used by Jacksonian Democrates in 1840's to promote the annexation of the west, inlcuding Oregon Territory, the Texas Annexation and the Mexican Cession.
Lewis and Clark Expedition
the first American overland expedition to the Pacific coast and back which congress appropriated $2500 to explore landscapes, rivers, native cultures, zoology, and botany of North America
Laura Inglas Wilder
author of the "Little House" series
known for contributions to social causes, inlcluding women's sufferage, the temperance movement and education