Answer:
the answer is one. have slavery
Because despite the 15th Amendment, due to Reconstructions' failure, many States and localities were allowed to create racist voting laws that kept African-American men from voting.
These laws were eventually remedied by the Voting Rights Act, which wasn't passed until 1965.
One of the major compromises in the Constitutional Convention was between the small states and the big states. The small states wanted each state to have to same number of representatives in Congress, while the big states wanted representation based on population.
Kind of like freedom of association, freedom of choice, and freedom of Speech, The Declaration of Independence, for example, describes men as having liberty and the nation as being free.
