The Bill of Rights is what protects us when we want to buy things.
Alexander III of Macedon (Greek: Αλέξανδρος Γ΄ ὁ Μακεδών; 20/21 July 356 BC – 10/11 June 323 BC), commonly known as Alexander the Great
The 15th amendment, which was about not disallowing anyone to vote based on their color