Lobotomy
...e Neolithic period. The Paleolithic period, or Old Stone Age, was the longest phase of human history. Its most outstanding feature was the development of the human species-- Homo sapiens. Paleolithic peoples were generally nomadic hunters and gatherers who sheltered in caves, used fire, and fashioned stone tools. Their cultures are identified by distinctive stone-tool industries. By the Upper Paleolithic there is evidence of communal hunting, constructed shelters, and belief systems centering on magic and the supernatural. Rock carving and paintings reached their peak in the Magdalenian culture of cro magnon man. The Mesolithic period, or Middle Stone Age, began at the end of the last glacial era, over 10,000 years ago. Cultures included gradual domestication of plants and animals, formation of settled communities, use of the bow, and development of delicate stone microliths and pottery. The time periods and cultural content of the Neolithic period, or New Stone Age, vary with geographic location. The earliest known Neolithic culture developed from the Natufian in Southwestern Asia between 9000 and 7000 BC. People lived in settled villages, cultivated grains and domesticated animals, developed pottery, spinning, and weaving and evolved into the urban civilizations of the Br...