Answer:
-The Thirteenth Amendment abolished slavery in 1865, but more work was needed to ensure that African American citizens had equal rights. The passage of the Fifteenth Amendment gave African American men the right to vote, although the law was not upheld in all states.
-The women's suffrage movement brought nationwide attention to the unequal treatment of women. Several states had granted women the right to vote by the mid-1800s, but it wasn't until 1920 that all U.S. women were recognized as full citizens.
-After civil rights protesters were met with violence in the Selma to Montgomery marches, President Johnson calls for an act that would change voting rights in the United States. This leads to the drafting of the Voting Rights Act of 1965 to give the federal government more power to get involved in state and local elections to prevent racial discrimination in voting.
-Because men could be drafted into the military when they were 18, it was deemed unfair that the legal voting age was 21. The Twenty-Sixth Amendment lowered the voting age to 18 so that those eligible for the draft would still have a voice in the nation's decisions.
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