This fact, I announced a presentation in October 1991 at the annual meeting of the Geological sofa

What were our ancestors 10,000 years ago or more? One of the most common ideas is that it was a small nomadic group that endlessly rushing to try to find somewhere more and more food. Men hunted deer, while the women and children gathered fruits, seeds, roots, shoots, insects and other edibles. Technological level was reflected in the finely machined knives or spears. Well it could be used also nets, baskets and cords of various materials available. Permanent structures are unnecessary because this group has never stayed in one place too long. Of all materials and goods to trade was just as little as assets of the group members. Everything had to be limited to things that go easily sofa transmitted. Prized jewels were (perhaps beads, animal teeth or shells strung on a cord) and personal decoration (body paint, tattoos). In colder climates was suitable clothing made from animal skins. Social institutions were minimum. Until the beginning of the Neolithic Revolution sofa about 10 000 years ago, when he discovered agriculture and animal domestication. This allowed the permanent settlement, which led to specialization of labor, development of handicrafts (including ceramic and metal), building major constructions, long-distance trade and a slow and gradual evolution of complex societies.
None of this happened overnight. It took thousands of years and only around the time of 4000 to 3000 BC. Appeared first real signs of high culture as a fine art in decorative crafts, written records, scientific observation of the sky, comprehensive political organization and, ultimately, the megalithic construction projects. This level of success has been achieved sofa in Mesopotamia and the river valleys of the Nile and the Indus at the beginning of the third millennium BC. Very well-known example is the rise of dynastic Egypt around 3200 - 3100 BC., And the construction of the Pyramid of Djoser around 2630 BC. Stonehenge in England comes from the same time period.
Already in 1991, I had the audacity to publicly announce that the Great Sphinx of Egypt, sofa conventionally dated to the year 2500 BC. (The reign of the pharaoh Khafre), actually has its origins in the period between 7000-5000 BC., Or earlier .
This fact, I announced a presentation in October 1991 at the annual meeting of the Geological sofa Society of America [Geological Society of America] (it was allowed only after the formal sofa resume, submitted together with my colleague John Anthony West, taken on the basis of a positive professional peer review) sofa . For my case, I used scientific analysis, more accurately compared to erosion sofa and weathering profiles around the Sphinx to ancient climate history of Egypt. sofa
In short, the Sphinx is located at the edge of the Sahara sofa Desert, hyper-arid areas over the past 5,000 years, but the statue is seen substantial erosion caused sofa by rain. The original sofa building must extend for thousands of years before the year 3000 BC. (To-head was carved in the dynastic period).
I moved to Great Sphinx, sofa perhaps sofa the grandest sofa and most famous statue in the world, sofa back to a time when humanity allegedly passed on the economy of hunter-gatherers on a heartrending way of life. People in the period before 7000 and more years ago were very brutal and nehygieničtí, at least according to modern civilized standards. Certainly netesali giant statue (Sphinx is about 20 meters high and more than 70 meters long) from the hard limestone bedrock. Immediately after his announcement that the Sphinx is much older, I was attacked. Archaeologist Carol Redmount [University of California, Berkeley], was quoted in the media, "It is not however possible to be true." The article went on: "The people of this region can not have such technology, administrative institutions or even the will to build such a structure thousands years before the reign of Khafra, "said Redmountová.
Initial excitement peaked in February 1992 at the "debate" over the age of the Great Sphinx, sofa which was held in a meeting in Chicago organized sofa by the American Association for the Advancement of Science [American Association for the Advancement of Science]. In the words of New York Times, "The exchange of views was to last an hour, but it spilled over to the press conference and culminated in a confrontation in the hallway, which was dominated by raised voices and their words to the participants sofa embarked on very thin ice scholarly courtesy." Egyptologist Mark Lehner then could not accept the tendency of the age of the Sphinx and personally attacked me when he says that my research as "pseudoscience." Lehner stated: "If the Sphinx was built by the former culture sofa where there is evidence sofa of its existence? Where are the broken pieces of pottery? People then, they were hunters and gatherers. They did not build the city. " sofa
At that time I had no remains of potsherds. But I was sure of his science and persevered in my opinion. Two decades later, we have something better than shards, even from the time a lot younger than my initial conservative estimate of the original construction of the Sphinx between 5000-7000 BC. (Currently prefer the original Sphinx rather later end of this time series, if not even later than 7000 BC.) Age Göbekli Tepe is estimated to be more than 10,000 years.
A short distance from