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8 sept 1939 año - 1939

Descripción:

DDT was introduced, marking the beginning of agriculture's heavy use of chemical pesticides in developing countries. The U.S. banned DDT in 1972 because it was harming the environment.

Añadido al timeline:

History of agriculture

ByTommy Pham
7 mar 2018
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0
471

fecha:

8 sept 1939 año
Ahora mismo
~ 86 years ago
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