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Alphabet — Domestic Biotech

InventTable — ALPHABET ERA — Domestic Biotech

InventionDescriptionYearInventorCountry
Chocolate from cocoa 700 BCE Maya/Aztec Mesoamerica
Hammock rope/cloth 425 BCE Akibiades Greece
Iron cast mouldboard plow cuts and turns the soil 300 BCE China
Chrysantemum as natural insecticide herbal pest control 100 AD China

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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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