Answer:
Communism was first developed by Karl Marx and Friedrich Engels in the mid-19th century.
The Declaration of Sentiments of 1848 was modeled after the Declaration of Independence.
Even the names of those documents are similar. The Declaration of Sentiments was a women's cause for equal rights which was based on the Declaration of Independence which states that 'all men are equal.' Well, that wasn't the exact truth given that women didn't have the same rights, which is why they were revolting.
I believe the answer is: It delayed or extended nationalist struggles.
The nationalist struggles come after different nations started to fully embodied nationalist movement, which make them tend to incline to prove their nation's superiority over another nations. This type of thinking often lead to conflicts among these european nations.
The Enlightenment thinkers changed peoples' beliefs of how government should work by talking of separation of powers and checks and balances.
