Ryan accepts that sometimes nonviolence can be effective, but says that sometimes it is not: "a principled insistence on nonviolence can in some circumstances be dangerous to progressive social moveme...

Francis Daniel Pastorius (September 26, 1651-1720) was a German born educator, lawyer, poet, and public official, who is particularly known for his anti-slavery advocacy.

A religious movement, whose members are known as Friends or Quakers.

The 1688 Germantown Quaker Petition Against Slavery was the first protest against African-American slavery made by a religious body in the English colonies.