Environmental Movement (1 jan 1960 ano – 1 jan 1970 ano)
Descrição:
In the United States today, the organized environmental movement is represented by a wide ... The modern Environmental movement, which began in the 1960s with concern about air and water pollution.
Adicionado na linha do tempo:
Data:
1 jan 1960 ano
1 jan 1970 ano
~ 10 years