| In order to understand the models described above with the origins of agriculture it important to account for the archaeological data. Some important ways to extract data is through pollen samples found in water bogs, radiocarbon dating, DNA extraction, etc. For example, in regards to Braidwood's hypothesis that climate change was not as important as Childe and Binford believed, reconstruction of plant communities enable archaeologists to reconstruct Paleolithic climates (29 Oct 2009). In order to reconstruct plant communities, pollen samples are used. Pollen samples can be preserved in waterlogged sediments because the mud at the bottom of the lakes have aerobic conditions, which means that there is no oxygen, allowing pollen and other artifacts to be nicely preserved (29 Oct 2009). Another method to reconstruct climatic conditions and determine when the Younger Dryas occurred is by evaluating methane gas presence in the ice cores found in Greenland (3 Nov 2009). This along with plant communities can help reconstruct past climates. Lithic assemblages used by the first farmers, the Natufians, are also good indicators of when agriculture originated. Tools such as picks and sickle blades were used for harvesting cereals; this can be inferred by observing the microwear on the blades, but also through plant macrofossils which might contain residue from the particular grass being cut (Bar-Yosef 1998: 164). Agriculture can also be demonstrated by the structures of the central plant stems. In domesticated plants the seeds do not break off as easily as the wild grains do, which is evidence of human manipulation on plants to maximize output but a correlation of harvests with seasonality (29 Oct 2009). Another source of evidence for the origins of agriculture is looking at samples of preserved human coprolites in settled communities which helps detect what type of diet the human had. If there is a lack of nutrition, then it can be inferred that the society was just beginning the innovation of agriculture as there was a lack of nutrition and variety in early agricultural diets. Not just coprolites but also bone composition, tooth enamel, and support for the presence of pandemic diseases provide good archaeological support for the origins of agriculture (Zeder 2006: 110). It's observed that carbon and nitrogen isotopes found within the bone and microwear on teeth detect the nutrition of humans. Other archaeological evidence for the presence of agriculture, described by Zeder (2006: 110) is the presence of fences and corral to enclose the community's animals; this reason fits nicely with the social theory and necessity for agriculture because it demonstrates the complete transition to sedentary life and the domestication of plants and animals. There are multiple theories that be equated to the development of agriculture and they all tend to build off of each other. Yes, each archaeologist or theorist emphasizes slightly different nuances, however they interrelate archaeological, environmental, and societal information in each of their models. According to Watson, "Braidwood's account improves on Childe's, and Binford's upon Braidwood's" (27). I propose that the stress theories of Childe, Cohen, and Binford can co-occur with the cultural change theories of Braidwood and Hayden. Agriculture could have been a great phenomenon that occurred by accident, but human cognition had to have had enough knowledge for the manipulation of grasses and animals to exploit and produce large surpluses. In order to keep order within the society with the presence of agriculture there also has to have been control and power structures. Climatic changes play a huge role in regards to where societies choose to settle and in the strength of seasonal food production. In recognizing the biological and cultural aspects of agriculture, it can be deduced that these models are very much interrelated with specific links that may cause one theorist's model to lean heavily to one side or another. There is not one universal applicable theory for the origin of agriculture because all of the world's systems are interdependent on one another. Some of the basic components that influenced Engels and Fried to cooperate with the conflict model were the increases in agricultural production, development of trade relationships, and the introduction of irrigation systems for water control. Engels states that the formation of the state begins with origins of agriculture (Haas 1982: 36). With the ability to produce more food and create surpluses for a growing population, societies became more sedentary and divisions of labor were created. The increase in food production created specialized occupations and allowed the elites to assume political administrative roles or have an impact in religious dealings. The role of religious figures is important as it is correlated with the state's political administration. Religion has a fa�ade, seen to unite a population, |
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