Final answer:
The center of manufacturing and finance in the early to mid-1800s were New England and the mid-Atlantic.
Step-by-step explanation:
The geographic regions that became the center of manufacturing and finance in the early to mid-1800s were New England and the mid-Atlantic.
In New England, wealthy merchants built water-powered textile mills along the rivers of the Northeast, leading to the growth and concentration of manufacturing in the region. The mid-Atlantic region, which includes states like New York and Pennsylvania, also experienced rapid industrial growth, especially in the production of steel and other metals.