Lydia C. Hopkins papers, 1825-1876.
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Hopkins, Lydia C.
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Centennial Exhibition 1876 Philadelphia, Pa.
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The Centennial Exhibition of 1876 marked the 100th anniversary of American freedom. The celebration took place in Philadelphia from May 10 to November 10 and attracted over eight million visitors. The exhibition spread across 450 acres of ground in Fairmont Park and consisted of over 200 buildings. Planning for the event began in 1870, and in 1871, Congress established the United States Centennial Commission to plan and run the exhibition. The following year saw the incorporation of the Centenni...
Houghton, Douglass, 1809-1845
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The Michigan Geological Survey was created by Public Act 20 of 1837. Its purpose was to conduct a geological and mineralogical survey of the state. The state legislature appointed Douglass Houghton the first state geologist (1837). In 1921, the state legislature established the Department of Conservation, and the Michigan Geological Survey became part of that department (Public Act 17 of 1921). The Department of Conservation established the Geological Survey Division circa 1947. In 1968, the dep...