Indians, trappers, traders, missionaries, emigrants, gold seekers, soldiers, cowboys and homesteaders would leave their mark on a place that would become famous in the American West. Fort Laramie, the military post, was founded in 1849 when the army purchased the old Fort John for $4000, and began to build a military outpost along the Oregon Trail. For many years, the Plains Indians and the travelers along the Oregon Trail had coexisted peacefuly. As the numbers of emigrants increased, however, tensions between the two cultures began to develop. To help insure the safety of the travelers, Congress approved the establishment of forts along the Oregon Trail and a special regiment of Mounted Riflemen to man them. Fort Laramie was the second of these forts to be established.