I have the feeling that I have a desastreous misunderstanding. Legio, if you write:

CHAPTER 10 - August 1st, 1613 AD
...this chapter will affect the events from August 1st, 1613 AD to March 1st, 1614 AD
Does that mean that the chapter is for the period August to March and that the next decision decide what happens during the next summer, or does that mean that the chapter describes the situation of August and that the next decisions will influence the winter season?