The study of how ideas developed over time is a type of conceptual or psychological historical research. identify a key concept in your own discipline and describe in detail the types of primary sources you could use to understand its history, explaining what each source might add to the study.

Around the third week of a college class, a professor decides she’s had enough, is tired of dealing with bureaucracies, and wants out. so one day, instead of coming to class, she flies to tahiti and sells souvenirs on the beach. if this happened, the college would simply assign a substitute to finish the course. what does this tell you about the nature of the authority wielded by a professor?