22 h 28 m, 30 nov 1963 ano - 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.
Descrição:
Clean air actAdicionado na linha do tempo:
Data:
22 h 28 m, 30 nov 1963 ano
Agora
~ 61 years ago