How did american's lives change between 1865 and 1900"

    The completion of the railroads to the West following the Civil War opened up vast areas of the region to settlement and economic development. White settlers from the East poured across the Mississippi to mine, farm, and ranch. African-American settlers also came West from the Deep South, convinced by promoters of all-black Western towns that prosperity could be found there. Chinese railroad workers further added to the diversity of the region's population.

    Settlement from the East transformed the Great Plains. The huge herds of American bison that roamed the plains were virtually wiped out, and farmers plowed the natural grasses to plant wheat and other crops. The cattle industry rose in importance as the railroad provided a practical means for getting the cattle to market.

    The loss of the bison and growth of white settlement drastically affected the lives of the Native Americans living in the West. In the conflicts that resulted, the American Indians, despite occasional victories, seemed doomed to defeat by the greater numbers of settlers and the military force of the U.S. government. By the 1880s, most American Indians had been confined to reservations, often in areas of the West that appeared least desirable to white settlers.

    The cowboy became the symbol for the West of the late 19th century, often depicted in popular culture as a glamorous or heroic figure. The stereotype of the heroic white cowboy is far from true, however. The first cowboys were Spanish vaqueros, who had introduced cattle to Mexico centuries earlier. Black cowboys also rode the range. Furthermore, the life of the cowboy was far from glamorous, involving long, hard hours of labor, poor living conditions, and economic hardship.

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the structure was most likely used for;

c. playing a ball game with stone hoops