1 ene 1920 año - US Federal Power Act authorizes federal hydroelectric projects
Descripción:
1920, June 10 — US Federal Power Act authorizes federal hydroelectric projects and begins a set of massive North American construction projects such as the Hoover Dam (pictured here, initially authorized in 1928).
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fecha:
1 ene 1920 año
Ahora mismo
~ 105 years ago