Why might new orleans prosper after the louisiana purchase

New Orleans was the entry way to the Mississippi River. The trade and business that would flow through it would only benefit New Orleans. To get goods quickly from the interior to the east coast one would have to use the Mississippi River and pass through New Orleans. Often times they would stop in New Orleans. Goods would be transferred to larger ships and then sent on the eastern port cities.  

It would be around the egyptian area.

Japan's government is dictatorship.