Records, 1850-1970.
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Allegheny Observatory
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The appearance of the comet known as "Donati's Comet", discovered in Florence by Giovanni Donati on June 2, 1858, gave the initial stimulus to the founding of the observatory. Interest in the comets appearance caused a group of men (professional and business) to form the Allegheny Telescope Association. This group, among whom the most prominent were Professor Louis Bradley, Josiah King and Harvey Childs, met in Bradley's home on February 15, 1858, and resolved not only to found the A.T.A. but al...