I would say to show that your source is credible!
Good Day!
The answer for this question is: New England
The region of new England was the main target destination for the people who want to seek job opportunity during that time (mostly from Massachusetts)
Not only that, the economic growth in this region also give the people with enough resources to sustain their living so their mortality rate is really low.
The arts and sciences flourished between both ages.
The U.S. Constitution established America’s national government and fundamental laws, and guaranteed certain basic rights for its citizens. It was signed on September 17, 1787, by delegates to the Constitutional Convention in Philadelphia, presided over by George Washington. Under America’s first governing document, the Articles of Confederation, the national government was weak and states operated like independent countries. At the 1787 convention, delegates devised a plan for a stronger federal government with three branches–executive, legislative and judicial–along with a system of checks and balances to ensure no single branch would have too much power. The Bill of Rights–10 amendments guaranteeing basic individual protections such as freedom of speech and religion–became part of the Constitution in 1791. To date, there have been a total of 27 constitutional amendments.