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1 дек 1869 г. - John Wesely Powell famous 3-month river expedition down the Green and Colorado River

Описание:

Powell Geographic Expedition was the first official U.S. government-sponsored passage through the Grand Canyon.

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Environment Timeline

ByRiley Oconnor
28 янв 2020

Дата:

1 дек 1869 г.
Сейчас
~ 154 г назад
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