All I really know about Karl Marx is that he didn't like capitalism. So I would have to say the invention of capitalism.
The Greeks and the Romans great influenced western cultures and medieval cultures in general since the Romans were masters of war, while the Greeks were masters of art.
First, he admitted the bravery and the intellect that the founders had to be able to bring independence for United States.
That's being said, Linocl had several difference with the view of the Founders. Regardless their sacrifice to establish this country, we can't deny that the founders allow the ownership of other human being as property in the constitution and he believed that united states could only achieve true liberty if it no longer restrict other humans' liberty in the process.
The answer is all of the above
Ummm....Definitely not....The 14th and 15th amendments did. But it wasn't just African Americans....