Around 6 million Jewish people were killed.
The Emancipation Proclamation only freed the slaves in the Confederate states, therefore encouraging them to rise up.
Answer:
c: The Sumerians among the first writings of any kind c. 3500 BCE
Explanation:
Sumer or Sumeria is still thought to be the birthplace of slavery, which grew out of Sumer into Greece and other parts of ancient Mesopotamia.