What were the earliest signs of human rights violations? What else is/was happening at the same time?

This can be officially defined as a genocide or not; or
A situation that is on the continuum of the stages of genocide
Research the situation and write a paper (3000 words) addressing the following issues and questions:
Describe the situation
Who are/were the victims?
Who are/were the perpetrators
Did/does the situation involve mass expulsion, deportation and/or forced separation?
How are/were people identified for mass expulsion, deportation and/or forced separation?
What were the earliest signs of human rights violations?
What else is/was happening at the same time?
Is/was the UN involved?
What is/was the reaction of the international community?
Do you see any parallels to current events in the U.S?
Do you see differences to current events in the U.S?