Editing Calibration (section)

===Origins===
The words "calibrate" and "calibration" entered the [[English language]] as recently as the [[American Civil War]],<ref>{{cite web|url=http://dictionary.reference.com/browse/calibrate|title=the definition of calibrate|website=Dictionary.com|access-date=18 March 2018}}</ref> in descriptions of [[artillery]], thought to be derived from a measurement of the calibre of a gun.

Some of the [[History of measurement#Earliest known measurement systems|earliest known systems of measurement]] and calibration seem to have been created between the ancient civilizations of [[Ancient Egypt|Egypt]], [[Mesopotamia]] and the [[Indus Valley civilization|Indus Valley]], with excavations revealing the use of angular gradations for construction.<ref name="Baber1996">{{cite book |last=Baber |first=Zaheer |date=1996 |title=The Science of Empire: Scientific Knowledge, Civilization, and Colonial Rule in India |publisher=SUNY Press |isbn=978-0-7914-2919-8 |pages=23–24 |url=https://books.google.com/books?id=ucDBJSxaCPYC&pg=PA14}}</ref> The term "calibration" was likely first associated with the precise division of linear distance and angles using a [[dividing engine]] and the measurement of gravitational [[mass]] using a [[weighing scale]]. These two forms of measurement alone and their direct derivatives supported nearly all commerce and technology development from the earliest civilizations until about AD 1800.<ref name="FranceschiniGaletto2011">{{cite book |last1=Franceschini |first1=Fiorenzo |last2=Galetto |first2=Maurizio |last3=Maisano |first3=Domenico |last4=Mastrogiacomo |first4=Luca |last5=Pralio |first5=Barbara |date=6 June 2011 |title=Distributed Large-Scale Dimensional Metrology: New Insights |isbn=978-0-85729-543-9 |publisher=Springer Science & Business Media |pages=117–118 |url=https://books.google.com/books?id=bIwbFtXyMcMC&pg=PA117}}</ref>