Alexander Graham Bell National Historic Site more, see Bras d'Or Lakes. Alexander Graham Bell National Historic Site Alexander Graham Bell National Historic Site is a property in Baddeck, Cape Breton, Nova Scotia, Canada, overlooking the Bras d'Or Lakes. The site is a unit of the national park system, and includes the Alexander Graham Bell Museum, the only museum in the world containing the actual artifacts and documents from Bell's years of experimental work in Baddeck. This site was designated a National Historic Site in 1952. The museum features artifacts donated in 1955 from the Bell family's personal museum, located in the Kite House at Beinn Bhreagh.
Invention of the telephone useful and widespread apparatus it is now. The telephone exchange was an idea of the Hungarian engineer Tivadar Puskás (1844–1893) in 1876, while he was working for Thomas Edison on a telegraph exchange. Puskás was working on his idea for an electrical telegraph exchange when Alexander Graham Bell received the first patent for the telephone. This caused Puskás to take a fresh look at his own work and he refocused on perfecting a design for a telephone exchange. He then got in touch with the U.S. inventor Thomas Edison who liked the design. According to Edison, "Tivadar Puskas was the