Which amendment allowed men to vote regardless of race?

The Fifteenth Amendment (Amendment XV)

Explanation: The Fifteenth Amendment (Amendment XV) to the United States Constitution prohibits the federal government and each state from denying or abridging a citizen's right to vote "on account of race, color, or previous condition of servitude." It was ratified on February 3, 1870, as the third and last of the Reconstruction.

Both the han and the roman empire decline as a result of social unrest during their collapse.

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