Explore current and historical political parties, map party control, and learn about polarization.
The U.S. Senate unanimously voted to pass what would become the 26th Amendment, lowering the voting age to 18.
In 1965, Congress passed the Immigration and Nationality Act, which eliminated restrictions racial, ethnic, and national origin restrictions on immigration and established priority immigration procedures for family reunification.
Felton became the first woman to serve in the Senate, for only 24 hours.
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