They didn't encourage it, but they did it to expand their empire, wealth, and power, through exploring the New World. It was helped along via the competitiveness between Spain and England, the two global superpowers that were competing for the most power, new land, and wealth.
Apex-type question, already rephrased and answered
It made travel between the Pacific and Atlantic Ocean much faster.
It made it unnecessary to sail around South America.
To establish a naval base
Cuba was a territory of Spain until the end of the Spanish-American War in 1898. The war was betweein the U.S.and Spain not the U.S. and Cuba.
it hurt society for the children to not attend school.
Businesses made more goods than people had the money to buy.
african americans
Asia and Africa.
The nations that received them did not fully accept them.