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Alphabet— Data communication

InventTable — ALPHABET ERA — Data communication

InventionDescriptionYearInventorCountry
Grammar word usage rules 700 BCE India
Coin money 600 BCE Phoenicia, Lebanon (54)
Pipe organ water pipe 250 BCE Ctesibius Rome
News Acta Diurna 59 BCE Julius Caesar Rome. (61)
Calendar Julian later Gregorian calendar 45 BCE Julius Caesar, Pope Gregory XIII Rome (98)
Postal system horse or cart methods 50 AD Caesar Augustus Rome (40)
Chess board strategy game 400 AD India

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Leo Dean Jansen

Leo Dean Jansen, MD is a retired orthopedic surgeon with a special interest in the history of technology.  This web page is the culmination of  his efforts to define and organize the history of technology as seen through 2000 inventions.  TECHNOLOGY:  TABLE, TRUTHS, TIMELINE, TOP 100 represents the 4 parts of this project.

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