Identify and explain a turning point associated with the locations identified on the map below

Location given in the map gave birth to the early civilizations in the world.

Explanation:

Rivers played a vital role in establishing human settlement as it provided water for several purposes. Fertile crescent in the region of the Middle East played a significant role in helping in the emerging of early civilization. The earliest civilizations, including Mesopotamia, Egypt, Indus valley, and China emerged because of the presence of rivers. These rivers included the Nile, Tigris–Euphrates, Indus, and Huang (Yellow). Rivers provided water for irrigation, drinking, and trading.

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b: to eliminate competition from other farmers