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Written — Non-Metals

InventTable — WRITTEN ERA — Materials, non-Metals

InventionDescriptionYearInventorCountry
Clay tablets writing medium 3500 BCE Mesopotamia
Plywood layered wood 3500 BCE Egypt
Lubricating grease used with sledge, axles 3500 BCE Mesopotamia
Glass non blown glass 3000 BCE Lebanon, Middle East (22)
Hydraulic engineering canals, wells, dams, aqueducts, dykes 3000 BCE Egypt, Mesopotamia, Indus River (14)
Stone ware durable ceramic 1400 BCE China

Back to InventTable Era: WRITTEN ERA Classification: Materials, non-Metals

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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