FAMOUS CREATION OF THE DAY - THE TELEPHONE

FAMOUS CREATION - THE TELEPHONE by

SOURCES
1) Wikipedia: Biography of Alexander Graham Bell
2) Tom Farley's Telephone History Series
3) Wikipedia: History of the Telephone
4) Telephony Museum: History of the Telephone
5) Connected Earth: How the telephone works
6) Wikipedia: Invention of the Telephone
7) Wikipedia: Biography of Elisha Gray
8) How Stuff works: The Telephone