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Technology History Timeline. 2400 BC. The first calculator invented. Called an: abacus. 776 BC. The use of pigeons that can send a message is recorded. 1567. First pencil invented by Conrad Gesner. 1765. Erasers are put on pencils by the Eberhard Company. 1803.
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2400 BC • The first calculator invented. • Called an: abacus
776 BC • The use of pigeons that can send a message is recorded.
1567 • First pencil invented by Conrad Gesner
1765 • Erasers are put on pencils by the Eberhard Company
1803 • Steel ink pen is said to have been developed in Birmingham, England.
1822 • First mechanical computer invented by Charles Babbage.
1825 • The element: aluminum :is discovered by Hans Christian Oerosted.
1834 • Braille is invented by Louis Braille.
1835 • The Morse Code is invented by Samuel F.B. Morse.
1837 • First practical telegraph invented by Samuel F.B. Morse.
1859 • Lead acid rechargeable battery invented by Gaston Plante.
1876 • Telephone invented and demonstrated by Alexander Graham Bell.