Marconi Museum and Mausoleum Marconi Museum and Mausoleum The Museum and Mausoleum of Guglielmo Marconi is a museum and burial structure for the Italian scientist, inventor, and engineer, Guglielmo Marconi. The tomb is located adjacent to the 17th-century Villa Griffone/Villa Marconi, located on via Celestini #1 in Pontecchio Marconi, about 15 kilometers outside the city of Bologna in Emilia Romagna, Italy. The Museo Marconi celebrates the discoveries and advances of the Marconi in the areas of electricity and radio communication, as well as a general history of the development of radiocommunication. It houses some of the scientific instruments and products used and developed by
First long-distance telephone line Downieville, California. The site is now a California Historical Landmark. The marker is inscribed: WORLD'S FIRST LONG-DISTANCE TELEPHONE LINE The first long-distance telephone in the world, built in 1877 by the Ridge Telephone Company, connected French Corral with French Lake, 58 miles away. It was operated by the Milton Mining Company from a building on this site that had been erected about 1853. First long-distance telephone line The world's first long-distance telephone line, established in 1877, connected French Corral with Bowman Lake (previously known as French Lake) at the headwaters of the Yuba River. It was strung across trees and