The use of rivers for irrigation in agriculture began in about

The correct answer is: 6000 B.C.

The use of rivers for irrigation began in the lands of Egypt and Mesopotamia; the ancient civilizations used the water from Nile, Tigris, and Euphrates rivers when these were in a flooding state.

The flooding waters usually ocurred from July to December. The technique consisted in diverting the river water to the fields, and drained back to preserve the growing cycle.

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

age 7 i learned how to ride a bike and skinned my knee

age 10 went on my first vacation to the beach

age 12 got in a car accident with my mom she got whiplash

age 14 i got my first pet and named it ripley

age 16 i got my my first car and it was blue

age 17 got my first job at target

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