This book is a thought-provoking collection of history, population biology, anthropology, and a variety of other fields. It tracks homo sapiens from a struggling and insignificant species through the cognitive, agricultural, and scientific phases of development. It talks about the importance of religions, nationalism, and economic systems. Interestingly, the role of capitalism was critical.
Original RFP used by the Army to acquire it’s first airplanes from the Wright Brothers.