Old Naval Observatory, view of rear wing, west side, 1975
This file appears in: Old Naval Observatory (National Observatory; Naval Museum of Hygiene; Naval Medical School)
Credit: Blanche Higgins Schroer, NPS, Historic Sites Survey
This file appears in: Old Naval Observatory (National Observatory; Naval Museum of Hygiene; Naval Medical School)
Old Naval Observatory (National Observatory; Naval Museum of Hygiene; Naval Medical School)
The original National Observatory was authorized by President Tyler in 1842 and completed in 1844 according to plans prepared by Lieutenant James Melville Gilliss. The observatory was the site of notable advances in astronomy and mathematics, and is…