The 17th Amendment allowed citizens to elect senators, the 16th Amendment introduced income tax, and the 19th Amendment granted women the right to vote.
The 17th Amendment gave ordinary citizens the power to directly elect two senators to the U.S. Senate, shifting from state legislatures appointing them. The 16th Amendment granted Congress the authority to tax individuals' income, establishing a federal income tax system. The 19th Amendment granted female citizens the right to vote, extending suffrage to women.
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