One important difference between the economic systems of the north and the south in the period 1790-1840 was Industrialization and Immigration. Basically, the slave economy of the south supported agriculture, while the free society in the North facilitated industrialization. ( hope that helped have a good day )
During World War II, 2 groups of countries were formed and went head to head. The Axis Powers included Japan and Germany; The Allies included the Soviet Union, France, China, US, India and Britain. If Japan won World War II, the defeated countries would be The United States, Great Britain and China.
Being careful of what you say
In general, the Industrial Revolution, which originated in Great Britain, opened up lots of new opportunities for employment for people, which created a solid middle class.