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22 h 28 m, 30 nov 1963 año - By the time President Lyndon Johnson signed into law the first Clean Air Act in December 1963 it was later amended in 1966, 1970, 1977, and 1990—America's air had been under siege for decades.
Descripción:
Clean air act
Añadido al timeline:
26 oct 2017
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Timeline Ali
fecha:
22 h 28 m, 30 nov 1963 año
Ahora mismo
~ 60 years ago