 Fourth, often historians are interested in piecing together the human meanings and intentions that underlie a given complex series of historical actions. They want to help the reader make sense of the historical events and actions, in terms of the thoughts, motives, and states of mind of the participants. For example: Why did Napoleon III carelessly provoke Prussia into war in 1870? Why did the parties of the far right in Germany gain popular support among German citizens in the 1990s? Why did northern cities in the United States develop such marked patterns of racial segregation after World War II? Answers to questions like these require interpretation of actions, meanings, and intentions—of individual actors and of cultures that characterize whole populations. This aspect of historical thinking is “hermeneutic,” interpretive, and ethnographic.