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776 bc. The first time to use homing pigeons to send a message. 1775 bc. Greeks us there phonetic alphabet to write left to right. 2400 bc. The abacus use the first calculator. It was invented by Babylon. 1642. In 1642 blasé Pascal invented a machine. They called it the adding machine.
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776 bc • The first time to use homing pigeons to send a message.
1775 bc • Greeks us there phonetic alphabet to write left to right.
2400 bc • The abacus use the first calculator. It was invented by Babylon
1642 • In 1642 blasé Pascal invented a machine. They called it the adding machine.
1793 • Claude chappe invented a long distance telegraph line. They called it the semaphore telegraph line.
1802 Richard Trevithick granted a patent for the steam locomotive
1802 • First Commercial electric motor was invented. It was invented by Thomas davenport.
