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1 янв 1920 г. - US Federal Power Act authorizes federal hydroelectric projects

Описание:

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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Bychyelle Jiazten milgrom
9 ноя 2019
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1 янв 1920 г.
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~ 105 г назад
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