Frontiersmen were early American settlers and explorers who ventured into the uncharted territories of the Appalachian region and beyond during the 18th and early 19th centuries. They played a crucial role in the expansion and settlement of these areas, often engaging in conflicts with Native American tribes as well as with other settlers, which shaped the socio-political landscape of the frontier. These individuals were typically skilled hunters, trappers, and farmers who had to adapt to the challenges of living in harsh, wilderness environments.