What was the smoot-hawley tariff of 1930?

The Tariff Act of 1930 (codified at 19 U.S.C. ch. 4), otherwise known as the Smoot–Hawley Tariff or Hawley–Smoot Tariff, was an act sponsored by Senator Reed Smoot and Representative Willis C. Hawley and signed into law on June 17, 1930. The act raised U.S. tariffs on over 20,000 imported goods.

South carolina was so angry about the election of lincoln that they seceded from the union on december 20, 1860. they attacked fort sumter later, on april 12, 1861.