It's the former practice of segregating black people in the US.
Answer:
The Tigris and Euphrates rivers provided water and ameans of transportation for the people who settled in the area. In ancient times, it was easier to travel by boat than over land. ... As the water spread over the floodplain, the soil it carried settled on the land. The fine soil deposited by rivers is called silt.
Explanation:
August 28, 1963 if you needed the year.
