In case the validator of this book happens to be on this list and is having difficulty confirming the dates associated with each chapter, I have the print copy of the book available and can confirm or furnish you that info. Jana, in her comments concerning the book, mentioned that she was not 100% sure if the dates listed were correct. Fortunately, my library had the book in; but it has already been claimed off the step 1 pool. Let me know if help is required.