Description: [edan-image:id=siris_sic_9592,size=200,left]Did you know the Smithsonian was an early adopter of the telephone? In June of 1878, a system of electronic bells and telephones was installed throughout the Smithsonian Castle. The system connected several workrooms and offices to provide instant communications within the building. At that time, there were only 187 telephone lines
Showing results 349 - 360 of 861 for Research Libraries Group