Apr. 12. 1935: 60,000 college students around the U.S. go on strike against war.

Apr. 13. 1864: Confederate soldiers massacre black prisoners of war at Fort Pillow, Tenn. 1995: Five Catholic Worker activists are arrested for resistance at the headquarters of the World Bank in Washington, D.C.

Apr. 14. 1994: Two U.S. fighter jets shoot down two U.S. helicopters over Iraq. 1997: Launch of separate two-month marches of the unemployed in nearly a dozen European countries, to converge on a European Union meeting in June.

Apr. 15. 1889: Black labor leader and peace activist A. Philip Randolph born. 1970: Police tear-gas anti-war protesters staffing flaming barricades which had been set up to block access to the University of Oregon in Eugene.

Apr. 16. 1971: U.S. military veterans hurl medals onto White House lawn, Washington D.C. 1998: Pol Pot dies in his sleep.

Apr. 17. 1960: As a response to the Greensboro sit-in, 140 black students form Student Nonviolent Coordinating Committee (SNCC) in Raleigh, North Carolina.

Apr. 18. 1996: 100 refugees in U.N. compound killed by intentionally targeted Israeli artillery, Quana, Lebanon. 1998: Labor organizations from across Latin America converge on Santiago, Chile, in a mass protest of Bill Clinton's free trade visit and negotiations there.

Apr. 19. 1988: U.S. Supreme Court rules that the Forest Service can build logging road through sacred lands of Yurok, Karok and Tolowa tribes in Northern California.

Apr. 20. 1914: Ludlow Massacre: in an attempt to persuade strikers at Colorado's Ludlow Mine Field to return to work, company "guards," employed by John D. Rockefeller, Jr. and other mine operators, attack a union tent camp with machine guns, then set it afire. Five men, two women and 12 children die as a result.

Apr. 21. 1945: Death of peace artist Kathe Kollwitz, in Germany. 1954: U.S. Air Force begins flying French reinforcements to Indochina.

Apr. 22. 1970: Millions of U.S. citizens participated in anti-pollution demonstrations to mark the first Earth Day. Corporate sponsorships were notably absent.

Apr. 23. 1904: Flathead Indian Reservation (in northwestern Montana) split into allotments; nearly half the land is then given to white settlers. 1996: Nineteen demonstrators arrested in Kiev, Ukraine, during illegal anti-nuclear protest marking 10th anniversary of Chernobyl.

Apr. 24. 1731: Daniel Defoe dies. English novelist, pamphleteer, journalist, and author of Robinson Crusoe. Along with Samuel Richardson, considered founder of the English novel. He was an intelligence agent for the Tories, then the Whigs; in his day he was regarded as an unscrupulous, diabolical journalist. 1954: Birth of jailed African-American journalist and activist Mumia Abu-Jamal.

Apr. 25. 1983: 175 women arrested for marching to mourn the rape of women in war, Sydney and Melbourne, Australia. 1993: Over one million join march in Washington, D.C. for gay, lesbian, bisexual and transgender rights.