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Environmental and Conservation Movements in Metropolitan America  

Robert R. Gioielli

By the late 19th century, American cities like Chicago and New York were marvels of the industrializing world. The shock urbanization of the previous quarter century, however, brought on a ... More

Food and Agriculture in the 20th and 21st Centuries  

Gabriella M. Petrick

This is an advance summary of a forthcoming article in the Oxford Research Encyclopedia of American History. Please check back later for the full article. ... More

The National Parks  

Donald Worster

The national parks of the United States have been one of the country’s most popular federal initiatives, and popular not only within the nation but across the globe. The first park was ... More

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