Development of Agriculture
According to one theory, it was a sudden change in climate, the Younger Dryas event (ca. 10800 to 9500 BC), that inspired the development of agriculture. The Younger Dryas was a 1,000-year-long interruption in the higher temperatures prevailing since the Last Glacial Maximum, which produced a sudden drought in the Levant. This would have endangered the wild cereals, which could no longer compete with dryland scrub, but upon which the population had become dependent to sustain a relatively large sedentary population. By artificially clearing scrub and planting seeds obtained from elsewhere, they began to practice agriculture. However, this theory of the origin of agriculture is controversial in the scientific community.
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