Why does the united states regulate automobile manufacturing in so many ways?

Which of the following was used only once, to ratify the 21st amendment (repealing prohibition)? a.three-fourths of both houses of congress. b.three-fourths of the state legislature approved it. c.two-thirds of the state legislature approved it. d.ratifying conventions in three-fourths of the states approve it.

After the civil war which president was called a "carpetbagger"?

How did the opposing sides of the revolutionary war compare