Origin era places a material in the period when it was actually first developed. Wikipedia records that "while seeking a corrosion-resistant alloy for gun barrels in 1913, Harry Brearley of the Brown-Firth research laboratory in Sheffield, England, discovered and subsequently industrialized" what became known as stainless steel. Browsing by origin era shows how old a material a visitor sees every day really is.
Facts
Comparison
Main Engineering Branch Field Founding Era Origin Era
Sources
1. Wikipedia: Engineering
WikipediaIntroduction, traditional disciplinesQuote, Introduction, traditional disciplines
The traditional disciplines of engineering are civil, mechanical, electrical, and chemical.
2. Wikipedia: Chemical engineering
WikipediaHistory, term origin, circa 1890Quote, History, term origin, circa 1890
History of Science in United States: An Encyclopedia puts the use of the term around 1890.
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