This new outlook suggests,for instance,that the Akkadian Empire in Mesopotamia may have been one of the earliest complex societies felled by severe drought.

• 例如，这一新观点表明美索不达米亚高原上的阿卡滇帝国可能是最早被严重的于旱灭亡的复杂的社会形态之一。阿卡滇帝国建立于公元前2300年左右。