Some material is not always covered in the class but is part of the related issue exams. For example, in RI#2, the inter-war period had not been covered in class yet the questions were based on this topic in the exam. Please note that Mr. Irwin didn't always give out the right hints of what would be on the exam. Throughout lectures he would give out what questions would be covered in the exam, such as the myth of Queen Marie Antoinette saying: "let [the ordinary people] eat cake". This was supposed to be in the exam yet never showed up. To be totally honest, you can't take his word on what would be on an exam unless it is super obvious, such as the 3 estates in French society in the time when King Louis XVI was ruling would be crucial to your knowledge of RI#1.