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Numbers — Energy radiant

InventTable — TOKENS ERA — Energy radiant

InventionDescriptionYearInventorCountry
Kiln furnace 6000 BCE Sumer Mesopotamia
Bow drill for starting fires 4500 BCE Indus River
Oil lamp radiating light 4000 BCE Egypt

Back to InventTable Era: TOKENS ERA Classification: Energy radiant

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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