Answer:
I think it's archeologists are uncovering ancient hidden structures by using satellite imagery.
Answer:
The Alien and Sedition Acts restricted the activities of foreign residents in the country and limited freedom of speech and of the press. These laws included new powers to deport foreigners as well as making it harder for new immigrants to vote.
Explanation:
The answer is Some college or associate's degree
Answer:
Transcontinental railroad
Explanation:
The Civil War was from 1861-1865 which is 4 years.