Linguistic data from Google Books Ngrams1. 98,098,832,753 tokens in 1851 - 2008. This is a work in progress. If you like this, then look at the Collocate Cloud (described here) and ComPair.
start - end: salient words in decreasing order (click to examine 25 years either side)
1850‑1854: esq respecting saviour apostle holiness scriptures endeavoured scripture desirous countenance occasioned amidst excite alluded circumstance affections unto apostles procured propriety hath labours illustrious piety lordship
1855‑1859: esq saviour respecting labours labors commenced aud alluded occasioned yon tho affections apostle countenance desirous bosom commencement piety propriety scriptures sufferings sabbath excite procured endeavoured
1860‑1864: tho esq aud saviour bo rebel rebels iu commenced labours hath alluded yon doth regiments batteries slavery cavalry respecting lordship ho wellington apostle gallant countenance
1865‑1869: rebel tho rebels aud yon bo gen esq saviour iu brigade ho regiment apostle commenced cavalry honorable batteries holiness alluded respecting regiments gallant affections apostles
1870‑1874: honorable aud tho bo saviour iu yon signifies respecting baptism affections apostles apostle svo labours commenced esq alluded truths ut commencement hast quod scripture shalt
1875‑1879: honorable svo aud yon iu bo esq tho apostles apostle heathen cloth epistle commencement respecting saviour proprietors labours alluded cromwell commenced upwards affections supposition endeavoured
1880‑1884: svo honorable aud iu yon mucous cloth bo inflammation crown tho affections illustrations epistle esq aforesaid dd alluded heathen pulpit irritation mischief nay speedily uterus
1885‑1889: svo aud plaintiff iu defendant hist tho defendants bo purchaser dd id deed crown yon honorable preached illustrations afterward heathen writ sheriff capt labors thither
1890‑1894: svo aud iu honourable prof monsieur columbus yon magnet illustrations madame dd fibres ibs sensations stanley heathen crown napoleon nay marvellous scotch messrs thither gentleman
1895‑1899: monsieur qu madame francs savages cried countess prof illustrations morrow qui aud fibres thither svo dante lad ye pour sulphuric nay honourable steamer marvellous iu
1900‑1904: monsieur francs madame duchess countess illustrations marquis cried morrow dante savages princess afterward tis thither mistress webster sulphuric charming napoleon hydrochloric marvellous venice messrs exclaimed
1905‑1909: cr dante signifies cement boiler tuberculosis bee piston venice ore steam mucous ibs pipes sulphuric sulphate civilisation shaft cubic valve hydrochloric paralysis intestine sulphur practically
1910‑1914: township panama bacteria tuberculosis cc sanitary sulphuric ibs hydrochloric freight railways practically cubic starch cents sulphate pipes railroad boiler iowa gastric sulphur railway ore railroads
1915‑1919: belgium germans cc prussian township german ideals neutrality tuberculosis austria panama prussia germany sanitary practically railroads hydrochloric drill austrian cents sulphuric railroad kansas lumber sulphate
1920‑1924: cc battalion ideals practically freight instinct instincts railroads tuberculosis sulphuric lumber coal payable bonds grades detroit oils holder hydrochloric trustee definite coil standpoint sulphate automobile
1925‑1929: vocational pupils grades junior alpha grade superintendent pupil automobile valuation ideals cc depreciation definitely practically advertising definite supervision arithmetic prohibition standpoint freight bureau league seq
1930‑1934: definitely pupils vocational unemployment banking junior grades outstanding purchasing league automobile alpha definite ff pupil securities shaw reserve teachers orchestra bureau tariff cleveland supervision grade
1935‑1939: definitely automobile hitler outstanding propaganda cc grid unemployment consumers retail purchasing vocational pupils league securities bureau cooperative nickel orchestra coil definite aluminum roosevelt advertising macmillan
1940‑1944: nazi hitler aircraft planes grid tanks radio germans vitamin propaganda aluminum voltage automobile orchestra pilot gear altitude civilian coil polish roosevelt poland rubber outstanding vocational
1945‑1949: grid nazi hitler voltage aircraft orchestra radio aluminum planes roosevelt germans civilian outstanding vitamin frequencies propaganda tanks rubber electrons polish vocational tuberculosis communists atomic bargaining
1950‑1954: communists voltage grid communist electrons communism hitler roosevelt atomic vitamin aluminum personnel orchestra outstanding nickel ml soviet solvent shri radio frequencies meter aircraft ussr atom
1955‑1959: communists shri atomic communist electrons communism personnel ltd eq roosevelt vitamin outstanding voltage ml inc soviet atom cit ions ussr electron overseas gm frequencies unions
1960‑1964: communist communists eq shri communism ussr electrons ml atomic soviet electron radiation equations scattering amino amplitude ions nuclear frequencies rs equation pakistan coefficients approximation momentum
1965‑1969: shri pakistan vietnam communist negro eq communists negroes kennedy churchill rs communism electron electrons cit soviet nuclear amino ussr enzyme scattering motivation variables basic stimuli
1970‑1974: shri vietnam pollution pakistan urban behavioral blacks ln enzyme variables communist programs organizational kennedy behavior plasma housing planning percent goals motivation attitudes oriented technological marx
1975‑1979: shri behavioral pollution ln enzyme blacks variables vietnam percent singh organizational urban plasma overall oriented alternatives nuclear dna evaluation sector availability programs ethnic technological involvement
1980‑1984: shri behavioral inflation nuclear plasma percent computer organizational overall processing technological variables involvement availability technology productivity renal concentrations kg evaluation sector syndrome interaction interactions ideological
1985‑1989: computer software processing nuclear eds behavioral syndrome technology parameters renal strategies plasma sector implementation overall cognitive user interactions input km parameter ideological therapy percent kg
1990‑1994: software strategies gender eds implementation options cognitive global networks dna user processing environmental parameter computer parameters humans syndrome sector currently interactions technology overall ideology oriented
1995‑1999: gender global strategies directory eds environmental software cognitive options ethnic humans networks focused asian implementation gene uk interactions typically participants syndrome context dna cultural argues
2000‑2004: web global gender options software uk user strategies phone networks users kids gene eds humans focused implementation com option files network typically asian environmental button
1Jean-Baptiste Michel*, Yuan Kui Shen, Aviva Presser Aiden, Adrian Veres, Matthew K. Gray, William Brockman, The Google Books Team, Joseph P. Pickett, Dale Hoiberg, Dan Clancy, Peter Norvig, Jon Orwant, Steven Pinker, Martin A. Nowak, and Erez Lieberman Aiden*. Quantitative Analysis of Culture Using Millions of Digitized Books. Science (Published online ahead of print: 12/16/2010)