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7:03
Khan Academy
Aspen Institute
The 15th Amendment
The Fifteenth Amendment, ratified in 1870, granted voting rights to all U.S. citizens, regardless of race or previous servitude. However, Southern states used tactics like poll taxes and grandfather clauses to prevent African Americans from voting. The Supreme Court upheld these practices until the Civil Rights Movement and the Voting Rights ...
2014年11月25日
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