Answer:
The answer is D. September 17, 1787.
Explanation:
The constitution was signed during the Constitutional convention in Philadelphia. Which lasted from May 25th to September 17th, the day it was signed.
Is this to help people feel better and be happy?
It most likely separated the church.
Industrialization created new jobs which helped to cause Urbanization, transportation and communication allowed goods to move to new markets, steamboat moved goods and people quickly, manufacturing, raw materials, and Bessemer steel process improved productivity.
In Early Philadelphia a lot happened like there were houses that needed to be built also colonies were hard to keep up with.