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 longwave transmissions travel much farther at night than in the day. During the daytime, signals had been received up to only about , less than half of the distance claimed earlier at Newfoundland, where the transmissions had also taken place during the day. Because of this, Marconi had not fully confirmed the Newfoundland claims, although he did prove that radio signals could be sent for hundreds of kilometres, despite some scientists' belief that they were limited essentially to line-of-sight distances. On 17 December 1902, a transmission from the Marconi station in Glace Bay, Nova Scotia, Canada became the world's first