nHistorians desiring to understand social change have to study causation.
nThe many factors involved in any one case make precise answers impossible, but when sufficient data are available, high probability can be attained.
nScholars looking for single-factor determinants use cultural, technological, economic, or “great man” theories as explanations.
nAll of the approaches raise as many questions as answers.
nThe best understanding is reached through debate based on all efforts chosen as explanations.