Before the Rise of Civilization: The Paleolithic Era

The first humans evolved in Africa during the Paleolithic Era, or Stone Age, which spans the period of history from 2.5 million to about 10,000 BCE. During this time, humans lived in small groups as hunter-gatherers, with clear gender divisions for labor. The men hunted animals while the women gathered food, such as fruit, nuts and berries, from the local area. Simple tools made of stone, wood, and bone (such as hand axes, flints and spearheads) were used throughout the period. Fire was controlled, which created heat and light, and allowed for cooking.Humankind gradually evolved from early members of the genus Homo—such as Homo habilis, who used simple stone tools— into fully behaviorally and anatomically modern humans (Homo sapiens) during the Paleolithic era. During the end of the Paleolithic, specifically the Middle and or Upper Paleolithic, humans began to produce the earliest works of art and engage in religious and spiritual behavior, such as burial and ritual. Paleolithic humans were nomads, who often moved their settlements as food became scarce. This eventually resulted in humans spreading out from Africa (beginning roughly 60,000 years ago) and into Eurasia, Southeast Asia, and Australia. By about 40,000 years ago, they had entered Europe, and by about 15,000 years ago, they had reached North America followed by South America.

Stone ball from a set of Paleolithic bolas. Paleoliths (artifacts from the Paleolithic), such as this stone ball, demonstrate some of the stone technologies that the early humans used as tools and weapons.

During about 10,000 BCE, a major change occurred in the way humans lived; this would have a cascading effect on every part of human society and culture. That change was the Neolithic Revolution.

The Neolithic Revolution: From Hunter-Gatherer to Agriculturalist

The beginning of the Neolithic Revolution in different regions has been dated from perhaps 8,000 BCE in the Kuk Early Agricultural Site of Melanesia Kuk to 2,500 BCE in Subsaharan Africa, with some considering the developments of 9,000-7,000 BCE in the Fertile Crescent to be the most important. This transition everywhere is associated with the change from a largely nomadic hunter-gatherer way of life to a more settled, agrarian-based one, due to the inception of the domestication of various plant and animal species—depending on the species locally available, and probably also influenced by local culture.It is not known why humans decided to begin cultivating plants and domesticating animals. While more labor-intensive, the people must have seen the relationship between cultivation of grains and an increase in population. The domestication of animals provided a new source of protein, through meat and milk, along with hides and wool, which allowed for the production of clothing and other objects.There are several competing (but not mutually exclusive) theories about the factors that drove populations to take up agriculture. The most prominent of these are:

• The Oasis Theory, originally proposed by Raphael Pumpelly in 1908, and popularized by V. Gordon Childe in 1928, suggests as the climate got drier due to the Atlantic depressions shifting northward, communities contracted to oases where they were forced into close association with animals. These animals were then domesticated together with planting of seeds. However, this theory has little support amongst archaeologists today because subsequent climate data suggests that the region was getting wetter rather than drier.
• The Hilly Flanks hypothesis, proposed by Robert Braidwood in 1948, suggests that agriculture began in the hilly flanks of the Taurus and Zagros mountains, where the climate was not drier, as Childe had believed, and that fertile land supported a variety of plants and animals amenable to domestication.
• The Feasting model by Brian Hayden suggests that agriculture was driven by ostentatious displays of power, such as giving feasts, to exert dominance. This system required assembling large quantities of food, a demand which drove agricultural technology.
• The Demographic theories proposed by Carl Sauer and adapted by Lewis Binford and Kent Flannery posit that an increasingly sedentary population outgrew the resources in the local environment and required more food than could be gathered. Various social and economic factors helped drive the need for food.
• The Evolutionary/Intentionality theory, developed by David Rindos and others, views agriculture as an evolutionary adaptation of plants and humans. Starting with domestication by protection of wild plants, it led to specialization of location and then full-fledged domestication.

Effects of the Neolithic Revolution on Society

The traditional view is that the shift to agricultural food production supported a denser population, which in turn supported larger sedentary communities, the accumulation of goods and tools, and specialization in diverse forms of new labor. Overall a population could increase its size more rapidly when resources were more available. The resulting larger societies led to the development of different means of decision making and governmental organization. Food surpluses made possible the development of a social elite freed from labor, who dominated their communities and monopolized decision-making. There were deep social divisions and inequality between the sexes, with women’s status declining as men took on greater roles as leaders and warriors. Social class was determined by occupation, with farmers and craftsmen at the lower end, and priests and warriors at the higher.

Effects of the Neolithic Revolution on Health

Neolithic populations generally had poorer nutrition, shorter life expectancies, and a more labor-intensive lifestyle than hunter-gatherers. Diseases jumped from animals to humans, and agriculturalists suffered from more anemia, vitamin deficiencies, spinal deformations, and dental pathologies.

Overall Impact of the Neolithic Revolution on Modern Life

The way we live today is directly related to the advances made in the Neolithic Revolution. From the governments we live under, to the specialized work laborers do, to the trade of goods and food, humans were irrevocably changed by the switch to sedentary agriculture and domestication of animals. Human population swelled from five million to seven billion today.
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