Year places an invention in the year it was actually patented or first demonstrated. Wikipedia records that "in 1876, Alexander Graham Bell was the first to be granted a United States patent" for the telephone. Browsing by year sets an invention in the wider timeline of technology history.
Facts
Comparison
Main Engineering Branch Field Founding Era Year
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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