Question: Where did the word "proton" first appear?
About the article "Proton", section "History".

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The first generation Proton Perdana is a four-door mid-size saloon manufactured by Malaysian automobile producer Proton which launched on 26 January 1995.
It is a badge engineered seventh generation Mitsubishi Eterna, developed as the result of a collaboration between Proton and Mitsubishi Motors.
About 80,000 first generation Proton Perdanas were sold between 1995 and 2010.
"Perdana" is the Malay word for "Prime". 
The Proton Perdana was first introduced in 1995 to serve the niche Malaysian luxury market segment which consisted of vehicles with engine displacement of 2,000cc and above.
Proton considered a replacement for the Perdana in 2004 under a tie-up with German automotive conglomerate, Volkswagen and again in 2005 with Mitsubishi Motors Australia for its 380.
However, both ventures were unfruitful and the Perdana continued in production up until 2010.
Proton signed a Memorandum of Understanding (MoU) with Nissan in 2011 with the intention of rebadging the Nissan Fuga/Infiniti M for exclusive sale to Malaysian government officials, but no further developments occurred and the venture was abandoned.
On 29 October 2012, Proton entered a collaboration with Honda Motor Company, Ltd.
Both companies have agreed to explore collaboration opportunities in the areas of technology enhancement, new product line up and the sharing of vehicle platforms and facilities.
In April 2013, it was revealed that the Proton PRM would most likely be based on a Honda Accord chassis, and be powered by Proton's newly acquired range of Petronas E01e 1.8, 2.0 and 2.2 litre engines.
Furthermore, it will not be limited to government officials, and will also serve as an instrument to Honda's expansion into the Malaysian market.
Additionally, the name "Proton Suprima" was filed for trademark status under the Intellectual Property Corporation of Malaysia (MyIPO) in January 2013, where the name "Suprima" has its roots in the English word "Supreme", widely speculated and deemed fitting for the Proton PRM's official product name.
However, on 14 August 2013, a spyshot of a Proton P3-22A test drive unit confirmed the name "Proton Suprima S" as the final and official product name of the hatchback complement of the Proton Prevé instead.
On 7 November 2013, spyshots revealed that the PRM would indeed be based on the North American eighth generation Honda Accord.
The PRM will launch in two phases, the first in mid-December for sale exclusively to the Malaysian government and the second within the next 2 years for the Malaysian Domestic Market.
Around 3,000 units of the PRM will be produced initially to replace the ageing Proton Perdana V6 fleet in use by civil servants.
It is not known whether the PRM would be exported to other countries, although such plans are highly unlikely judging from the Proton Inspira's marketing strategy.
Unlike the Inspira, which was sold alongside the Mitsubishi Lancer which it was based on, the PRM will present no marketing conflicts to its sister car, as Honda Malaysia has already launched the new ninth generation Honda Accord on 4 September 2013. 
Proton Motorsports is rally team of car manufacturer Proton, currently competing with the Proton Satria Neo S2000 in the Super 2000 World Rally Championship.
The team partner is British based Mellors Elliot Motorsport (MEM).
Proton participated in international rally events such as the 2009 Intercontinental Rally Challenge season with the Proton Satria Neo Super 2000.
Their best result in IRC is Alister McRae finish 2nd place at the 2009 Rally Scotland.
Drivers in 2009 were Guy Wilks, Bryan Bouffier and Alister McRae scoring 13 points.
In 2010 Proton team had many retirements and did not scored a single point.
Drivers for 2010 were Alister McRae, Chris Atkinson, Niall McShea, Keith Cronin, Gilles Panizzi and a privateer with factory support, Tom Cave.
The best result from the 2010 season was Gilles Panizzi secured 22nd place at the 2010 Rallye Sanremo, although it was the only finish for the Proton Satria Neo S2000 in that season.
For opening round of the 2011 IRC season, the famous Rallye Monte Carlo Proton entered two cars.
Chris Atkinson retired at the first special stage and Per-Gunnar Andersson at second special stage.
In November 2011, Proton tasted its sweetest victory yet, at the China Rally where it clinched the Asia Pacific Rally Championship driver’s and manufacturer’s titles and capped off a dominant season for the Malaysian car maker.
Alister McRae drove the Proton Satria Neo S2000 to its fourth victory of the season in six rounds when he completed the three-day China Rally ahead of Finnish driver Jari Ketomaa in the Mitsubishi Lancer Evolution X with team mate Chris Atkinson finishing third to make it an all Proton 1–2 in the APRC driver’s championship.
The Satria Neo S2000’s dominant performance all year long also crowned Proton winner of the coveted APRC manufacturer’s championship ahead of Mitsubishi with Subaru finishing the 2011 season a distant third.
The results in China also saw Proton become the first car manufacturer to win all eight major individual titles in the FIA APRC which includes: the overall FIA APRC driver’s title; FIA APRC manufacturer’s title; the FIA APRC Teams Trophy; the FIA Asia Cup driver’s title; the FIA Pacific Cup driver’s title; the manufacturer’s title in the FIA APRC Rally Cup for two-wheel drive category; the FIA APRC Rally Cup two-wheel drive driver’s title; and FIA APRC Junior Cup driver’s title. 
The English term "cash" was first used on coins issued in Kwangtung (Guangdong) Province in 1900.
It did not appear on paper money.
The plural forms "cash" and "cashes" were both used.
The English word "cash", meaning "tangible currency", is an older word from Middle French "caisse" ("box, chest, case".)
However, when applied to oriental coins, the word is from the Portuguese "caixa", ultimately from the Sanskrit word "karsa" meaning copper.
The Chinese character "wen" () has several other meanings in modern Chinese.
[http://www.mandarintools.com/cgi-bin/wordlook.pl?word=%E6%96%87&searchtype=chinese&where=whole&audio=on] 
The Indiana University (IU) Health Proton Therapy Center formally known as the Midwest Proton Radiotherapy Institute (MPRI) is the first proton facility in the Midwest.
The Center offers proton therapy in Bloomington, Indiana, United States located on the Indiana University campus.
The IU Health Proton Therapy Center is the only proton therapy center in the U.S. to use a uniform-scanning beam for dose delivery which decreases undesirable neutron dose to patients.