Everything in this book was arranged very haphazardly, with no particular order.
It felt like the author took a bunch of history textbooks, skimmed through all of them, and then just wrote down whatever he remembered and decided to publish it.
I also felt like it didn't provide you with enough information about each topic and moved on too quickly.
I knew quite a bit about some topics, and in those particular topics, it seemed as though some facts were just missing or they were just skipped.