Following the Compromise of 1877, poll taxes, literacy tests and the Grandfather Clause were used to… *

All those things were used as voter suppression to keep blacks from voting. At the time, the south was Democratic and they knew that the black people would vote Republican since Abraham Lincoln was a Republican.

Explanation:

Sounds kind of like the Democrats of today... LOL

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)