An interesting overview of the history of mankind. Learned a lot of surprising facts (i.e. the impact of humans (or actually "homo sapiens") on its environment is stupendous: the total wipeout of large marsupials in Australia total landscape changes, the wipeout of all other non-sapiens humans. The "bad deal" of the agricultural revolution. The role of stories to believe in in the development of sapiens (including, but not limited to religions), etc.etc). It's so much I'm afraid I'm going to forget a lot of them.

Has an impact on the way I view the world right now - hence 5 stars.