The greatest change in the West that was brought about by railroad expansion was a drastically increased population size, since people could now claim land and travel far more easily.
Answer:
here are a few topics:
Explanation: first one:
you could talk about the earliest computers invented and how people had to operate them, you could also talk about how computers receive codes and the first ever code created.
equal protection doctrine, and it should have protected the young Korematsu from being sent to an American internment camp