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The History of construction overlaps many other fields like structural engineering and relies on other branches of science like archaeology , history and architecture to investigate how the builders lived and recorded their accomplishments. Those fields allow us to analyse constructed buildings and other structures built since prehistory , the tools used and the different uses of building materials. History of building is evolving by different trends in time, marked by few key principles: Neolithic , also known as the New Stone Age , was a time period roughly from BC to BC named because it was the last period of the age before wood working began. The tools available were made from natural materials including bone , antler, hide, stone , wood, grasses, animal fibers, and the use of water. These tools were used by people to cut such as with the hand axe , chopper , adze , and celt. Also to scrape , chop such as with a flake tool , pound, pierce, roll, pull, leaver, and carry. Building materials included bones such as mammoth ribs, hide , stone, metal, bark, bamboo, clay, lime plaster , and more.
In a broad sense agriculture includes cultivation of the soil, growing and harvesting crops, breeding and raising of livestock, dairying, and forestry. Regional and national agriculture are covered in more detail in individual continent and country articles. See also separate articles on the states of Australia and the U. Modern agriculture depends heavily best dating sites bc engineering and technology and on the biological and physical sciences.
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BCE is reported in some ancient sources to have been a philosopher who was the earliest Greek to develop the theory of atomism —the idea that everything is composed entirely of various imperishable, indivisible elements called atoms. Leucippus often appears as the master to his pupil Democritus , a philosopher also touted as the originator of the atomic theory. As the philosophical heir of Democritus, Epicurus's word has some weight, and indeed a controversy over this matter raged in German scholarship for many years at the close of the 19th century. Furthermore, in his Corpus Democriteum ,  Thrasyllus of Alexandria , an astrologer and writer living under the emperor Tiberius 14—37 CE , compiled a list of writings on atomism that he attributed to Democritus to the exclusion of Leucippus. The present consensus among the world's historians of philosophy is that this Leucippus is historical. The matter must remain moot unless more information is forthcoming from the record. Leucippus was most likely born in Miletus ,  although Abdera and Elea are also mentioned as possible birthplaces. Leucippus was indeed a shadowy figure, as his dates are not recorded and he is often mentioned in conjunction with his more well-known pupil Democritus.
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