How did the fires in new orleans change the city ?

New Orleans was one of the most important port cities in t he U.S. at the time. The city allowed access to the Mississippi River, an important route for both transportation (of both troops and civilians) and shipping. The fires stopped all of that from happening :(

Explanation:

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.