In order to make their schedules more standard what did railroads do? a. divided the United States into time zones
b. put the whole United States on the same time
c. allowed each train to set it own schedule
d. forced every train to leave its station on the hour

After the supreme court’s ruling on the dred scott case, many people in the north believed that a. slavery might become legal everywhere. b. slavery might be banned everywhere. c. formerly enslaved people would move to the north. d. formerly enslaved people would stay in the south.

Which of the following statements describes the philosophy of thomas hobbes? democracy is necessary for a country to succeed. b. a country needs a ruler with absolute power to succeed. c. people have natural rights to life, to be free and to own property. d. a country needs no rulers or government to be safe and successful.

Ahistorian who compares the expansion of political systems to the expansion of economic systems is organizing history by