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66 reviewsThe origins of civilization can be tied to the arising of one concept in the human mind: straight lines. Where did this concept come from? What shift in consciousness occurred around the globe that triggered the start of rectangular building methods and linear organization as well as written language, pyramid construction, mathematics, and art? Outlining the historical, psychological and geophysical roots of the modern human mind, Calleman shows how studying early civilizations offers a means of understanding the evolution of consciousness.
