What constitutional rights were denied to African Americans in the past?

there is no "right to vote" in the constitution or a "right to drink at a water fountain" or any of those other "rights" just listed... and the slaves were only considered 3/5 of a person for purposes of census enumeration, which was entirely meant to limit the power of the slave states in congress with the hope that we could eventually get rid of slavery entirely.

They were certainly not treated to a trial by a jury of their peers as jury pools would have only consisted of free and mostly white citizens; they were denied the right to assemble and petition the government, under Jim Crow laws blacks were denied the right to have guns.

Unofficially there were plenty of other abuses; such as unreasonable searches and seizure of property; the Constitution protected slavery and legalized racial subordination. Instead of constitutional rights, slaves were governed by “slave codes” that controlled every aspect of their lives. They had no access to the rule of law; they could not go to court, make contracts, or own any property. They could be whipped, branded, imprisoned without trial, and hanged.

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not sure what the thumbs down are for as my answer is accurate whether you like the answer or not i have no doubt there were plenty of abuses but as the question is asking specifically about "constitutional rights" i address specifically the rights enumerated in the constitution and it's amendments and not any assumed rights that you might think should exist. The fact that something isn't fair or right does not necessarily mean it violates a "constitutional right".

After the Civil War, the Civil Rights Act, along with the 13th, 14th, and 15th Amendments to the Constitution gave full Constitutional rights to all blacks, including all former slaves. Jim Crow laws were the result of a bad Supreme Court decision, Plessy v Ferguson in 1896.

The reason slaves were counted as 3/5ths of a person was to boost the South's population in the census so Southern states would have wider representation in the federal legislature.

The right to vote.

The right to be considered a full person. A grown slave was only 5/8 of a person.

The right to do things like others like drink at water fountains, assemble, go to school, stay at hotels, etc under the Jim Crow law.

The right to own property unless you could prove without a doubt you were free.

To ALWAYS CARRY PAPERS on you to show your status ESPECIALLY when you were a FREE person. If you did not, you could be put back into slavery. hmmmm..reminds me of Arizona and the Holocaust.