Answer:
I believe that the Atlantic slave trade contributed to conditions that eventually led to the Haitian revolution by resulting in African slaves making up the vast majority of St Domingue's population thus giving them strength in numbers to overthrow a slave system and form their own sovereign government.
it pulled the usa out of the great depression and England boomed in manufacturing
Leads to competition,antagonism between nations
The major cause of shifts in political allegiance during this time came from the Great Depression, which required strong government intervention to correct the issue. These interventions became commonly ascociated with the Democratic Party, thanks to FDR.