On March 3, 1847, Alexander Graham Bell was (1)_____ in Edinburgh. He was a Scotsman although he later emigrated, first to Canada and then to the USA in the 1870s. In America, he worked (2)______ deaf – mutes (3)_____Boston University. Soon, Bell started experimenting with ways of transmitting (4)___________________ over a long distance. This (5)____________________ to the (6)_____________ of the telephone.
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