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 1930s
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Sources
1. Wikipedia: Engineering
WikipediaIntroduction, traditional disciplinesQuote, Introduction, traditional disciplines
The traditional disciplines of engineering are civil, mechanical, electrical, and chemical.
2. Wikipedia: Electrical engineering
WikipediaIntroduction, emergence as an occupationQuote, Introduction, emergence as an occupation
It emerged as an identifiable occupation in the latter half of the 19th century after the commercialization of the electric telegraph.
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