I'm currently enrolled in a postgraduate teacher education. Recently (August 2007) I finished my MA History at Utrecht University, focusing on early modern history. My thesis "De schrift, het licht en de wereld" focused on a discussion between Quaker missionaries and Amsterdam Collegiants.
I wrote term papers about:
obedience and resistance in early protestant thought
Spanish guerrilla warfare against Napoleon
Francis Fukuyama's Our Posthuman Future and the (im)possibility of evolutionary humanism
agricultural development of Germany 1400-1600
agricultural productivity change in the Yangtze Delta and England, 1500-1800
I mainly edit out typos, if I edit at all, really changing historical articles usually takes too much time for my taste, as you get around to checking many facts before even changing one sentence. And if I edit significantly chances are I have no idea what I'm talking about...