Instruct: Classify Amazon reviews into positive or negative sentiment
Query: disturbing and not academic

In the very first paragraph he comments that "...we do not know when or where the human race originated".....ummm, we have a pretty good idea, and with genetic research of populations, human migrations are being documented even more accurately. This makes me distrust the writer and not want to keep reading...ALSO in the first paragraph, he refers to the ice age that we are "still coming out of"?? Is this referring to global warming? How ridiculous that some dusty old historian is treating this book as his means of venting about so-called liberal ideas such as climate change...I was convinced that this book had to be extremely dated, but the last edition was printed in 1995! There is no excuse!