Marconi Plaza, Philadelphia the work. . The Plaza later served as the grand pre-entrance for the 1926 Sesquicentennial Exposition, leading visitors south along a tree lined Southern Boulevard Parkway (Philadelphia, Pennsylvania) ( landscaped segment of South Broad Street) to the exhibition grounds that started at Packer Avenue and continued to League Island Park. This neighborhood twin park is mirrored on both sides of Broad Street and became property of the Fairmount Park system. It held the common name of Oregon Plaza until October 18, 1937 when it was officially named Marconi Plaza in honor of the Nobel Prize Laureate Guglielmo Marconi, the inventor
Guglielmo Marconi operations, long after it was apparent that the future of radio communication lay with continuous-wave transmissions which were more efficient and could be used for audio transmissions. Somewhat belatedly, the company did begin significant work with continuous-wave equipment beginning in 1915, after the introduction of the oscillating vacuum tube (valve). The New Street Works factory in Chelmsford was the location for the first entertainment radio broadcasts in the United Kingdom in 1920, employing a vacuum tube transmitter and featuring Dame Nellie Melba. In 1922, regular entertainment broadcasts commenced from the Marconi Research Centre at Great Baddow, forming the prelude to