The "Old West" refers to the period in American history during the late 19th century, roughly from the 1860s to the 1890s. This era is characterized by westward expansion, the settlement of new territories, and the development of frontier towns. Key events included the California Gold Rush, the building of the Transcontinental Railroad, and conflicts with Native American tribes. Life in the Old West was often rugged and challenging. Settlers, cowboys, and outlaws shaped the culture, with iconic figures like Billy the Kid and Wild Bill Hickok becoming legendary. The Old West is also known for its unique social structures, including saloons, cattle drives, and law enforcement figures like sheriffs.