11) Which president abolished slavery in 1865?
12) What amendment to the Constitution granted women the right to vote in 1920?
13) When did the American Revolutionary War take place?
14) What year did the United States purchase Alaska from Russia?
15) Who signed the Declaration of Independence on July 4th, 1776?
16) Q9 What event began in 1861 and officially ended in 1865?
17) Q10 What amendment to the Constitution prohibited the sale and manufacture of alcohol?
18) What is the name of the first president of the United States?
19) In what year did the United States become an independent nation?
20) What was the primary cause of the American Revolutionary War?