Those like you mentioned are good examples of the lack of human rights in ancient times and there are some leaders of the modern era that can be use as examples that in places it doesn't or didn't exist in this century.See, you're doing it again. "Human Rights" is a western concept that only came into use after WW2. If you want to see what I mean, please try to apply your principle to other historical figures and civilizations. Caesar, Alexander the Great, Hannibal, Pyrrhus, Genghis Khan, Qin Shi Huang the first Chin Emperor, the Maya and Aztec empires where human sacrifices were commonplace, and so forth. You better get busy, you have a lot of human history to go ahead and condemn.
But according to this, a form of human rights existed in 539 B.C..
History of Natural Law & Basic Freedoms, Cyrus the Great: United for Human Rights
>In 539 B.C., the armies of Cyrus the Great, the first king of ancient Persia, conquered the city of Babylon. But it was his next actions that marked a major advance for Man. He freed the slaves, declared that all people had the right to choose their own religion, and established racial equality. These and other decrees were recorded on a baked-clay cylinder in the Akkadian language with cuneiform script.
Known today as the Cyrus Cylinder, this ancient record has now been recognized as the world’s first charter of human rights. It is translated into all six official languages of the United Nations and its provisions parallel the first four Articles of the Universal Declaration of Human Rights.<
http://www.humanrights.com/what-are-human-rights/brief-history/cyrus-cylinder.html
Also in that article: >Documents asserting individual rights, such as the Magna Carta (1215), the Petition of Right (1628), the US Constitution (1787), the French Declaration of the Rights of Man and of the Citizen (1789), and the US Bill of Rights (1791) are the written precursors to many of today’s human rights documents.<