American Explorers & Pioneers - 20th Century Explorers And The Alaska Purchase

The video covers the history of exploration in the American West and Alaska, highlighting key figures like George Derby, Joseph Ives, and John Wesley Powell. It discusses the formation of the US Geological Survey and the significant expeditions led by Ferdinand Hayden, Clarence King, and George Wheeler. The narrative shifts to Alaska's exploration, focusing on Robert Kennicott and William Dall's contributions. The video concludes with modern exploration efforts in polar regions and space, emphasizing the role of NASA and astronauts as contemporary explorers.

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