Sepia-toned photograph of a manuscript map with detailed renderings of the plots and buildings of 17th-century New York City

Photograph of the Castello Plan

Historic map from the 1800s on a long sheet of yellowing paper that depicts an expansion proposal to put Manhattan streets on the grid system.

Commissioners’ Map and Survey of Manhattan Island

Poster on yellowing paper that shows a circle that is half green and half blue encompassed by a green and blue arrow above text that reads: Earth Day - April 22, Union Square, Fifth Avenue.

Poster from the first Earth Day
1970
Environmental Action Coalition Records, Manuscripts and Archives Division

Poster from the first Earth Day

The first Earth Day was celebrated on April 22, 1970, as a response to environmental disasters. Yukihisa Isobe designed this promotional poster for the Environmental Action Coalition of New York, formed to coordinate the city’s Earth Day events. A rally on the steps of the Library’s 42nd Street location featured speeches by Mayor John Lindsay and a number of leading authors. An estimated 20 million participated nationwide, and Earth Day became an annual event, catalyzing the modern environmental activist movement, the Environmental Protection Agency, and the Clean Air, Clean Water, and Endangered Species Acts.

Holding Division: Environmental Action Coalition Records, Manuscripts and Archives Division

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