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At the Institute’s core is the Gilder Lehrman Collection, one of the great archives in American history. More than 85,000 items cover five hundred years of American history, from Columbus’s 1493 letter describing the New World through the end of the twentieth century.

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20 August 1842

Goodyear, Charles, 1800-1860

Autograph letter signed

Title: to Benjamin Silliman

Sends Silliman, chemistry professor at Yale, enclosed examples (not included) of his improvements in gum elastic. Claims that "the elastic articles will not loose their elastic quality by age or by use."

GLC02480.09

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