What about the ancient Persians? I'm not saying they were the greatest of all civilizations, but they shure did contribute.
2500 years ago, the great Persian king wrote the first charter of human rights. After capturing Babylon he also allowed the return of jews to Israel.
The first Charter of Human Rights written 2500 years ago
I am Kourosh (Cyrus), great king,
Now that I put the crown of the kingdom of Iran, Babylon, and the nations of the four directions on the head with the help of Ahura, I announce that I will respect the traditions, customs and religions of the nations of my empire and never let any of my governors and subordinates look down on or insult them while I am alive.
I will impose my monarchy on no nation. Each is free to accept it, and if any one of them rejects it, I never resolve on war to reign. While I am the king
I will never let anyone oppress others,
I will never let anyone take possession of movable and landed properties of the others by force or without compensation. While I am alive, I will prevent unpaid, forced labour. Today, I announce that everyone is free to choose a religion.
No one could be penalised for his or her relatives' faults
That's pretty incredible for being a 2500 year-old charter.