http://www.workingforchange.com/article.cfm?itemid=17214#3July 12
Things that happened on this day that you never had to memorize in school
1450: Jack Cade, leader of rebellion of workers, executed and his head left on London Bridge.
1810: Members of shoemakers' union face trial in New York City for striking to win wage increases.
1817: Henry Thoreau, author of "On the Duty of Civil Disobedience," born, Massachusetts.
1839: Cherokee Act of Union brings together the Eastern and Western Cherokee, split apart the previous winter by the deadly Trail of Tears, to form a unified tribal government.
1864: Birth of George Washington Carver.
1892: Pennsylvania state militia breaks Carnegie steel strike.
1895: Birth of inventor, polymath, R. Buckminster Fuller.
1904: Forty-five thousand Chicago slaughterhouse workers strike.
1909: Working for the man: U.S. Congress authorizes income tax (16th amendment).
1917: In order to break up a copper mine strike, several thousand vigilantes round up 1,186 IWW members in Bisbee, Arizona; they are "deported" into the Sonoran desert. Patriotism and support for the war effort were cited as reasons for the action.
1933: Congress passes first minimum wage law ($0.33 per hour).
1951: Adlai Stevenson calls National Guard to stop rioting in Cicero, Illinois. Mob of 3,500 tries to keep an African-American family from moving into the city.
1966: Racial riots erupt in Chicago and Cleveland.
1980: Cree of northern Quebec file suit claiming Canadian and Quebec governments failed to honor James Bay and North Quebec Agreement. The James Bay I hydroelectric project, built in the 1970s, flooded tens of thousands of square miles of Cree and Inuit lands.
1985: Salvadoran guerillas liberate 149 prisoners.
2000: One minute of silence to protest terrorism is widely observed, Greece.