The first battle between the Britain and the American colonists occurred at Lexington, Massachusetts.
Can you give me more information?
The answer is:
The major industrial cities became overcrowded as workers from rural areas moved there.
and
Because of the steady increase in food production, the population nearly doubled between 1800 and 1850.
The answer would be the last one because the government had to boost economy after world war ll
Grace period seems correct
