Slavery obviously. The North had more factories and they farmed food products. A large Southern export was cotton. The North also had a higher population, more cities. The South had more military bases. How many do you need?
I believe the Project Mercury was the first program that first sent two people into Orbit.
It was the Soviet Union that put the two people to explore the Orbit.
Development assistance programs are designed to reduce poverty and encourage economic growth in poor countries. They include programs for agriculture, health, education, the environment, and democracy and governance
