By 334 BC there were 7 warring states: Qin, Chu, Zhao, Wei, Han, Yan, and Qi. The Warring States Period ended with Qin's conquest of the other states. It was succeeded by the Qin Dynasty in 221 BC, which marked the transition between ancient China and Imperial China.
Answer:
that all individuals would be pardoned as long as they never again committed the act of slavery.
The answer is: Presidents
Assuming you're still referring to the Fifteenth Amendment, many critics pointed out that the newly-freed slaves lacked the proper amount of education to make informed voting decisions, and that it would be detrimental to the state to have them vote in general and local elections.