Separation of powers ensures against oppression by isolating the focal government into three branches. Montesquieu thought of authoritative, legal, and the official branches so that one person or gathering will have all the power.
Hope I helped!
I think, that the answer to why, is that the change in presidencies from republican to democratic (i might be wrong, and it could be democratic to republican) influenced the change slightly because the new party, wanted to focus on different issues such as westward expansion. As to how, it was because the government withdrew all federal troops from the south, so there wasn't anybody to enforce the laws protecting African American rights so the southerners were free to exploit the African Americans to their will.
The Egyptians had long believed that they were the most ancient race on earth, and Psamtik, driven by intellectual curiosity, wanted to prove that flattering belief. Like a good psychologist, he began with a hypothesis: If children had no opportunity to learn a language from older people around them, they would spontaneously speak the primal, inborn language of humankind—the natural language of its most ancient people—which, he expected to show, was Egyptian.
Told the herdsman never tell anyone about it
