Just for fun let's take the U.S. over the last 50 years.
Here's a few that I recall.
Right-Wing Extremist Violence:
Murder of Emmit Till
Attack on peaceful lunch counter sit-ins in NC, GA, MS.
Murder of Medgar Evers
Fire bombing of black churches in MS, AL, GA by KKK
Attacks on "Freedom Riders" (volunteers registering blacks to vote in the south.
Birmingham, Ala., Commissioner of Public Safety Eugene "Bull" Connor uses fire hoses and police dogs on peaceful black demonstrators.
Murder of Four young girls (Denise McNair, Cynthia Wesley, Carole Robertson, and Addie Mae Collins) attending Sunday school.
James E. Chaney, 21; Andrew Goodman, 21; and Michael Schwerner, 24, had been working to register black voters in Mississippi and were murdered.
Selma, AL - Fifty non-violent marchers are hospitalized after police use tear gas, whips, and clubs against them.
Martin Luther King is murdered.
In the U.S., violence directed toward abortion providers has killed at least 7 people, including 3 doctors, 2 clinic employees, a security guard, and a clinic escort.
According to statistics gathered by the National Abortion Federation (NAF), an organization of abortion providers, since 1977 there have been 17 attempted murders, 383 death threats, 153 incidents of assault or battery, and 3 kidnappings committed against abortion providers.
Bombing of Murrah Federal building claimed 168 lives and left over 800 people injured.
Cites:
http://www.factmonster.com/spot/civi...timeline1.html
http://en.wikipedia.org/wiki/Anti-abortion_violence
http://www2.indystar.com/library/fac...ombing/ok.html