In 1949, U.S. Senator Hubert Humphrey called for the abolition of the filibuster in order to advance civil rights bills; as Senate Majority Whip, he advanced civil rights bills; as a Senator in 1975, he voted to lower the threshold to break a filibuster from 67 votes to 60.
The Senate's attempt to repeal the Affordable Care Act narrowly failed due to a surprise defection by Sen. John McCain
In 1866, the House voted 105-20 to try former Confederate President Jefferson Davis for treason -- the trial ultimately never occurred.
Felton became the first woman to serve in the Senate, for only 24 hours.
The 42nd Congress voted 115-65 to establish Yellowstone, America's first national park -- despite concerns surrounding federalism
