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Declaration of the United Nations Conference on the Human Environment (5 magg 1972 anni – 15 magg 1972 anni)

Descrizione:

Stockholm Conference takes place and 26 principles are developed.

Aggiunto al nastro di tempo:

Contemporary history

30 nov 2018

0

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629

Data:

5 magg 1972 anni

15 magg 1972 anni

~ 10 days

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