How did economic changes contribute to inequality in American society?

Because wages are their primary source of income, the rise in income inequality that has blocked living standards growth for the vast majority since 1979 has been driven by a pronounced reduction in the collective and individual bargaining power of ordinary American workers.

they were the direct result of some cultural difussion.

the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.