Boise, Idaho

City with a population of 205,314 in 2008: Largest city in Idaho. State capital and county seat of Ada County. Its name is of indeterminate origin, although probably comes from a name used by early settlers and "mountain men." Fort Boise was first built here by the Hudson Bay Company in the 1830s, during the period that the Oregon County was an Anglo-American condominium. Native American raids prompted the US Army to rebuilt the fort in 1863 along the Oregon Trail near the quickly growing Boise City. The city was incorporated in 1864 and became territorial capital in 1865. It remained the capital upon statehood in 1890.