Claim profile
1800–1899

The 19th century

Whose names filled the books of the 19th century — anyone at all, however long dead — counted as mentions per million words printed, so a period that simply published more does not inflate anyone.

Talked about then

Whose names appeared most in English books during the 19th century — whenever they lived.

In books written inEnglish18,114German3,599French3,347Italian1,787Spanish1,162Russian325Hebrew105Chinese9
  1. 1JesusJesus5 BC–30 · 1st century · Religious Figures94
  2. 2HomerHomer900 BC–800 BC · 1st millennium BC · Writers15
  3. 3CiceroCicero106 BC–43 BC · 1st millennium BC · 🇮🇹 Italy · Politicians13
  4. 4AugustusAugustus63 BC–14 · 1st millennium BC · 🇮🇹 Italy · Politicians13
  5. 5PlatoPlato428 BC–348 BC · 1st millennium BC · Academics10
  6. 6VirgilVirgil70 BC–19 BC · 1st millennium BC · 🇮🇹 Italy · Writers9.6
  7. 7AristotleAristotle384 BC–322 BC · 1st millennium BC · Academics9.4
  8. 8SocratesSocrates470 BC–399 BC · 1st millennium BC · 🇧🇷 Brazil · Academics6.4
  9. 9HerodotusHerodotus484 BC–425 BC · 1st millennium BC · 🇹🇷 Turkey · Writers6.2
  10. 10Charles II, Duke of SavoyCharles II, Duke of Savoy1489–1496 · 15th century · Historical Figures5.9
  11. 11Charles II, Duke of Münsterberg-OelsCharles II, Duke of Münsterberg-Oels1545–1617 · 16th century · Historical Figures5.9
  12. 12Charles II, Lord of MonacoCharles II, Lord of Monaco1555–1589 · 16th century · Politicians5.9
  13. 13PlutarchPlutarch40–120 · 1st century · Academics5.6
  14. 14OvidOvid43 BC–17 · 1st millennium BC · 🇮🇹 Italy · Writers4.2
  15. 15StraboStrabo63 BC–23 · 1st millennium BC · Academics4.1
  16. 16CharlemagneCharlemagne748–814 · 8th century · Historical Figures3.9
  17. 17DemosthenesDemosthenes384 BC–322 BC · 1st millennium BC · Politicians3.8
  18. 18Lord ByronLord Byron1788–1824 · 19th century · 🇬🇧 United Kingdom · Writers3.6
  19. 19Henry IV, Duke of BrabantHenry IV, Duke of Brabant1251–1272 · 13th century3.5
  20. 20Henry IV, Holy Roman EmperorHenry IV, Holy Roman Emperor1050–1106 · 11th century · 🇩🇪 Germany · Historical Figures3.5
  21. 21Henry IV, Duke of LimburgHenry IV, Duke of Limburg1195–1247 · 13th century · Historical Figures3.5
  22. 22HIHenry IV, Duke of Brunswick-Lüneburg1463–1514 · 15th century · 🇩🇪 Germany3.5
  23. 23HIHenry IV, Count of Waldeck1300–1348 · 14th century3.5
  24. 24Henry IV, Count of LuxembourgHenry IV, Count of Luxembourg1113–1196 · 12th century · Politicians3.5
  25. 25LivyLivy59 BC–17 · 1st millennium BC · 🇮🇹 Italy · Writers3.4
  26. 26OrigenOrigen185–254 · 3rd century · 🇪🇬 Egypt · Academics3.1
  27. 27CleopatraCleopatra69 BC–30 BC · 1st millennium BC · 🇪🇬 Egypt · Historical Figures3.0
  28. 28XenophonXenophon430 BC–354 BC · 1st millennium BC · Academics3.0
  29. 29Walter ScottWalter Scott1771–1832 · 19th century · 🇬🇧 United Kingdom · Writers3.0
  30. 30Henry III, Duke of GłogówHenry III, Duke of Głogów1251–1309 · 13th century · Politicians2.8
  31. 31HIHenry III, Count of Luxembourg1070–1096 · 11th century · Historical Figures2.8
  32. 32Henry III, Count of LouvainHenry III, Count of Louvain1060–1095 · 11th century · Politicians2.8
  33. 33Henry III, Count of Schauenburg-HolsteinHenry III, Count of Schauenburg-Holstein1370–1421 · 15th century2.8
  34. 34Henry III, Duke of Münsterberg-OelsHenry III, Duke of Münsterberg-Oels1542–1587 · 16th century2.8
  35. 35Henry III, Margrave of Baden-HachbergHenry III, Margrave of Baden-Hachberg1300–1330 · 14th century · Models2.8
  36. 36Henry III, Holy Roman EmperorHenry III, Holy Roman Emperor1016–1056 · 11th century · 🇩🇪 Germany · Historical Figures2.8
  37. 37Henry III, Count of GoriziaHenry III, Count of Gorizia1263–1323 · 13th century2.8
  38. 38TertullianTertullian160–240 · 2nd century · Academics2.7
  39. 39James II, Count of UrgellJames II, Count of Urgell1388–1433 · 15th century2.6
  40. 40Robert PeelRobert Peel1788–1850 · 19th century · 🇬🇧 United Kingdom · Politicians2.6
  41. 41Henry VII, Holy Roman EmperorHenry VII, Holy Roman Emperor1275–1313 · 14th century · 🇫🇷 France2.6
  42. 42PericlesPericles494 BC–429 BC · 1st millennium BC · Politicians2.5
  43. 43Henry VI, Count of LuxembourgHenry VI, Count of Luxembourg1240–1288 · 13th century · Politicians2.5
  44. 44HVHenry VI, Count of Waldeck1340–1397 · 14th century2.5
  45. 45Henry VIHenry VI1376–1454 · 15th century2.5
  46. 46John Russell, 1st Earl of BedfordJohn Russell, 1st Earl of Bedford1485–1555 · 16th century · Politicians2.4
  47. 47EuclidEuclid333 BC–285 BC · 1st millennium BC · Academics2.4
  48. 48John the BaptistJohn the Baptist6 BC–30 · 1st century · 🇮🇱 Israel · Religious Figures2.4
  49. 49Henry II, Count of ChampagneHenry II, Count of Champagne1166–1197 · 12th century · 🇫🇷 France · Historical Figures2.3
  50. 50Henry II, Count of Holstein-RendsburgHenry II, Count of Holstein-Rendsburg1317–1390 · 14th century2.3
  51. 51Henry II , Duke of Lower LorraineHenry II , Duke of Lower Lorraine1059–1119 · 11th century2.3
  52. 52Henry II, Duke of Münsterberg-OelsHenry II, Duke of Münsterberg-Oels1507–1548 · 16th century2.3
  53. 53Henry II, Prince of Anhalt-AscherslebenHenry II, Prince of Anhalt-Aschersleben1215–1266 · 13th century · Historical Figures2.3
  54. 54Henry II, Duke of Brunswick-GrubenhagenHenry II, Duke of Brunswick-Grubenhagen1289–1351 · 14th century · Historical Figures2.3
  55. 55Henry II, Duke of ŚwidnicaHenry II, Duke of Świdnica1312–1345 · 14th century2.3
  56. 56Henry IIHenry II1207–1248 · 13th century · 🇫🇷 France · Politicians2.3
  57. 57Henry II, Holy Roman EmperorHenry II, Holy Roman Emperor973–1024 · 11th century · 🇩🇪 Germany · Historical Figures2.3
  58. 58HIHenry II, Margrave of the Nordmark1102–1128 · 12th century2.3
  59. 59Henry II, Duke of ZiębiceHenry II, Duke of Ziębice1396–1420 · 15th century2.3
  60. 60Henry II, Margrave of Brandenburg-StendalHenry II, Margrave of Brandenburg-Stendal1308–1320 · 14th century · Models2.3
  61. 61OthoOtho32–69 · 1st century · 🇮🇹 Italy · Politicians2.3
  62. 62TrajanTrajan53–117 · 1st century · 🇪🇸 Spain · Politicians2.3
  63. 63BedeBede672–735 · 8th century · 🇬🇧 United Kingdom · Writers2.3
  64. 64SolonSolon630 BC–560 BC · 1st millennium BC · Writers2.2
  65. 65EuripidesEuripides480 BC–406 BC · 1st millennium BC · Writers2.2
  66. 66ThucydidesThucydides460 BC–395 BC · 1st millennium BC · Writers2.1
  67. 67PythagorasPythagoras582 BC–490 BC · 1st millennium BC · Academics2.1
  68. 68PindarPindar517 BC–437 BC · 1st millennium BC · Writers2.0
  69. 69Richard IIRichard II963–1026 · 10th century · 🇫🇷 France1.9
  70. 70Julius CaesarJulius Caesar100 BC–44 BC · 1st millennium BC · 🇮🇹 Italy · Politicians1.9
  71. 71SophoclesSophocles496 BC–406 BC · 1st millennium BC · Writers1.9
  72. 72John SmithJohn Smith1580–1631 · 17th century · 🇬🇧 United Kingdom · Historical Figures1.8
  73. 73VespasianVespasian9–79 · 1st century · Politicians1.8
  74. 74AristophanesAristophanes445 BC–385 BC · 1st millennium BC · Writers1.8
  75. 75William HenryWilliam Henry1774–1836 · 19th century · Scientists1.7
  76. 76Ben JonsonBen Jonson1572–1637 · 17th century · 🇬🇧 United Kingdom · Writers1.7
  77. 77Alexander the GreatAlexander the Great356 BC–323 BC · 1st millennium BC · Historical Figures1.7
  78. 78HippocratesHippocrates460 BC–370 BC · 1st millennium BC · Doctors1.7
  79. 79AlcibiadesAlcibiades450 BC–404 BC · 1st millennium BC · Politicians1.6
  80. 80AhabAhab918 BC–852 BC · 1st millennium BC · Models1.6
  81. 81Isaac NewtonIsaac Newton1642–1727 · 17th century · 🇬🇧 United Kingdom · Academics1.6
  82. 82WIWilliam III, Count of Burgundy1110–1127 · 12th century · Historical Figures1.6
  83. 83WIWilliam III, Marquess of Montferrat970–1042 · 11th century · Historical Figures1.6
  84. 84WIWilliam III, Count of Jülich1150–1218 · 12th century · Historical Figures1.6
  85. 85William III, Count of ToulouseWilliam III, Count of Toulouse975–1037 · 11th century · Historical Figures1.6
  86. 86WIWilliam III, Count of Genevaborn 1280 · 14th century1.6
  87. 87William III, Duke of BavariaWilliam III, Duke of Bavaria1375–1435 · 15th century · Historical Figures1.6
  88. 88WIWilliam III, Duke of Aquitaine910–963 · 10th century1.6
  89. 89John BullJohn Bull1562–1628 · 16th century · 🇬🇧 United Kingdom · Musicians1.6
  90. 90George II, Duke of Württemberg-MontbéliardGeorge II, Duke of Württemberg-Montbéliard1626–1699 · 17th century1.6
  91. 91George II, Duke of BriegGeorge II, Duke of Brieg1523–1586 · 16th century1.6
  92. 92George II, Duke of Münsterberg-OelsGeorge II, Duke of Münsterberg-Oels1512–1553 · 16th century1.6
  93. 93PolybiusPolybius200 BC–120 BC · 1st millennium BC · Writers1.5
  94. 94GalenGalen129–300 · 2nd century · 🇹🇷 Turkey · Doctors1.5
  95. 95HadrianHadrian76–138 · 2nd century · 🇪🇸 Spain · Historical Figures1.5
  96. 96LucretiusLucretius94 BC–55 BC · 1st millennium BC · 🇮🇹 Italy · Writers1.5
  97. 97LucanLucan39–65 · 1st century · Writers1.4
  98. 98William JonesWilliam Jones1746–1794 · 18th century · 🇬🇧 United Kingdom · Academics1.4
  99. 99William the ConquerorWilliam the Conqueror1028–1087 · 11th century · 🇫🇷 France · Historical Figures1.4

Lived then

The most notable people whose working lives fell in the 19th century, ranked where Wikipedia coverage and readership agree.

CountryAll🇺🇸 United States🇫🇷 France🇩🇪 Germany🇬🇧 United Kingdom🇮🇹 Italy🇪🇸 Spain🇯🇵 Japan🇦🇹 Austria🇹🇷 Turkey🇸🇪 Sweden
FieldAllPoliticiansWritersHistorical FiguresScientistsAcademicsArtistsMusiciansDoctorsFoundersJournalists
  1. 1Thomas EdisonThomas Edison1847–1931 · 🇺🇸 United States · Scientists13 decades
  2. 2Alexander Graham BellAlexander Graham Bell1847–1922 · 🇺🇸 United States · Scientists15 decades
  3. 3Robert E. LeeRobert E. Lee1807–1870 · 🇺🇸 United States · Scientists16 decades
  4. 4Samuel MorseSamuel Morse1791–1872 · 🇺🇸 United States · Scientists0 decades
  5. 5John MuirJohn Muir1838–1914 · 🇺🇸 United States · Scientists19 decades
  6. 6Samuel ColtSamuel Colt1814–1862 · 🇺🇸 United States · Scientists18 decades
  7. 7George Washington CarverGeorge Washington Carver1864–1943 · 🇺🇸 United States · Scientists9 decades
  8. 8Frederick Winslow TaylorFrederick Winslow Taylor1856–1915 · 🇺🇸 United States · Scientists8 decades
  9. 9Antonio MeucciAntonio Meucci1808–1889 · 🇺🇸 United States · Scientists14 decades
  10. 10John Stith PembertonJohn Stith Pemberton1831–1888 · 🇺🇸 United States · Scientists19 decades
  11. 11Robert FultonRobert Fulton1765–1815 · 🇺🇸 United States · Scientists22 decades
  12. 12Charles GoodyearCharles Goodyear1800–1860 · 🇺🇸 United States · Scientists19 decades
  13. 13Isaac SingerIsaac Singer1811–1875 · 🇺🇸 United States · Scientists0 decades
  14. 14George WestinghouseGeorge Westinghouse1846–1914 · 🇺🇸 United States · Scientists15 decades
  15. 15John Jacob Astor IVJohn Jacob Astor IV1864–1912 · 🇺🇸 United States · Scientists0 decades
  16. 16John BrowningJohn Browning1855–1926 · 🇺🇸 United States · Scientists16 decades
  17. 17Matthew C. PerryMatthew C. Perry1794–1858 · 🇺🇸 United States · Scientists9 decades
  18. 18George MeadeGeorge Meade1815–1872 · 🇺🇸 United States · Scientists13 decades
  19. 19SequoyahSequoyah1770–1843 · 🇺🇸 United States · Scientists16 decades
  20. 20Herman HollerithHerman Hollerith1860–1929 · 🇺🇸 United States · Scientists4 decades
  21. 21Josiah Willard GibbsJosiah Willard Gibbs1839–1903 · 🇺🇸 United States · Scientists5 decades
  22. 22Percival LowellPercival Lowell1855–1916 · 🇺🇸 United States · Scientists14 decades
  23. 23P. G. T. BeauregardP. G. T. Beauregard1818–1893 · 🇺🇸 United States · Scientistsnot measured—
  24. 24James BowieJames Bowie1796–1836 · 🇺🇸 United States · Scientists18 decades
  25. 25Hiram MaximHiram Maxim1840–1916 · 🇺🇸 United States · Scientists0 decades
  26. 26Albert A. MichelsonAlbert A. Michelson1852–1931 · 🇺🇸 United States · Scientists0 decades
  27. 27Josephine CochraneJosephine Cochrane1839–1913 · 🇺🇸 United States · Scientists0 decades
  28. 28Edward Drinker CopeEdward Drinker Cope1840–1897 · 🇺🇸 United States · Scientists2 decades
  29. 29Emile BerlinerEmile Berliner1851–1929 · 🇺🇸 United States · Scientists4 decades
  30. 30Eli WhitneyEli Whitney1765–1825 · 🇺🇸 United States · Scientists21 decades
  31. 31Johnny AppleseedJohnny Appleseed1774–1845 · 🇺🇸 United States · Scientists13 decades
  32. 32John Wesley PowellJohn Wesley Powell1834–1902 · 🇺🇸 United States · Scientists12 decades
  33. 33Luther BurbankLuther Burbank1849–1926 · 🇺🇸 United States · Scientists13 decades
  34. 34Joseph HenryJoseph Henry1797–1878 · 🇺🇸 United States · Scientists22 decades
  35. 35Emily Warren RoeblingEmily Warren Roebling1843–1903 · 🇺🇸 United States · Scientists0 decades
  36. 36Annie Jump CannonAnnie Jump Cannon1863–1941 · 🇺🇸 United States · Scientists0 decades
  37. 37John DeereJohn Deere1804–1886 · 🇺🇸 United States · Scientists17 decades
  38. 38Mihajlo PupinMihajlo Pupin1858–1935 · 🇺🇸 United States · Scientists0 decades
  39. 39John Augustus RoeblingJohn Augustus Roebling1806–1869 · 🇺🇸 United States · Scientists0 decades
  40. 40Richard Jordan GatlingRichard Jordan Gatling1818–1903 · 🇺🇸 United States · Scientists0 decades
  41. 41Elisha GrayElisha Gray1835–1901 · 🇺🇸 United States · Scientists9 decades
  42. 42Henry GanttHenry Gantt1861–1919 · 🇺🇸 United States · Scientists0 decades
  43. 43Samuel Pierpont LangleySamuel Pierpont Langley1834–1906 · 🇺🇸 United States · Scientists0 decades
  44. 44Eunice Newton FooteEunice Newton Foote1819–1888 · 🇺🇸 United States · Scientists0 decades
  45. 45Elias HoweElias Howe1819–1866 · 🇺🇸 United States · Scientists17 decades
  46. 46Cyrus McCormickCyrus McCormick1809–1884 · 🇺🇸 United States · Scientists12 decades
  47. 47Lewis Howard LatimerLewis Howard Latimer1848–1928 · 🇺🇸 United States · Scientists0 decades
  48. 48Maria MitchellMaria Mitchell1818–1889 · 🇺🇸 United States · Scientists17 decades
  49. 49George PullmanGeorge Pullman1831–1897 · 🇺🇸 United States · Scientists7 decades
  50. 50Asa GrayAsa Gray1810–1888 · 🇺🇸 United States · Scientists19 decades
  51. 51Henry Fairfield OsbornHenry Fairfield Osborn1857–1935 · 🇺🇸 United States · Scientists11 decades
  52. 52Charles WilkesCharles Wilkes1798–1877 · 🇺🇸 United States · Scientists22 decades
  53. 53Constantine Samuel RafinesqueConstantine Samuel Rafinesque1783–1840 · 🇺🇸 United States · Scientists0 decades
  54. 54Matthew Fontaine MauryMatthew Fontaine Maury1806–1873 · 🇺🇸 United States · Scientists12 decades
  55. 55Eli LillyEli Lilly1838–1898 · 🇺🇸 United States · Scientistsnot measured—
  56. 56George Washington Gale Ferris, Jr.George Washington Gale Ferris, Jr.1859–1896 · 🇺🇸 United States · Scientists0 decades
  57. 57Williamina FlemingWilliamina Fleming1857–1911 · 🇺🇸 United States · Scientists0 decades
  58. 58Asaph HallAsaph Hall1829–1907 · 🇺🇸 United States · Scientists7 decades
  59. 59Edmund Kirby SmithEdmund Kirby Smith1824–1893 · 🇺🇸 United States · Scientists3 decades
  60. 60Jacob W. DavisJacob W. Davis1831–1908 · 🇺🇸 United States · Scientistsnot measured—
  61. 61Edwin HallEdwin Hall1855–1938 · 🇺🇸 United States · Scientists7 decades
  62. 62Alfred VailAlfred Vail1807–1859 · 🇺🇸 United States · Scientists8 decades
  63. 63Ellen Swallow RichardsEllen Swallow Richards1842–1911 · 🇺🇸 United States · Scientists0 decades
  64. 64Charles PfizerCharles Pfizer1824–1906 · 🇺🇸 United States · Scientistsnot measured—
  65. 65Edward Emerson BarnardEdward Emerson Barnard1857–1923 · 🇺🇸 United States · Scientists0 decades
  66. 66Edwin DrakeEdwin Drake1819–1880 · 🇺🇸 United States · Scientistsnot measured—
  67. 67Charles Martin HallCharles Martin Hall1863–1914 · 🇺🇸 United States · Scientists3 decades
  68. 68Granville Tailer WoodsGranville Tailer Woods1856–1910 · 🇺🇸 United States · Scientistsnot measured—
  69. 69David Dunbar BuickDavid Dunbar Buick1854–1929 · 🇺🇸 United States · Scientistsnot measured—
  70. 70Margaret E. KnightMargaret E. Knight1838–1914 · 🇺🇸 United States · Scientistsnot measured—
  71. 71Sam LoydSam Loyd1841–1911 · 🇺🇸 United States · Scientists0 decades
  72. 72Morgan RobertsonMorgan Robertson1861–1915 · 🇺🇸 United States · Scientistsnot measured—
  73. 73Edward W. MorleyEdward W. Morley1838–1923 · 🇺🇸 United States · Scientists2 decades
  74. 74Horace WellsHorace Wells1815–1848 · 🇺🇸 United States · Scientistsnot measured—
  75. 75Ferdinand Vandeveer HaydenFerdinand Vandeveer Hayden1829–1887 · 🇺🇸 United States · Scientistsnot measured—
  76. 76James Dwight DanaJames Dwight Dana1813–1895 · 🇺🇸 United States · Scientists8 decades
  77. 77Whitcomb L. JudsonWhitcomb L. Judson1846–1909 · 🇺🇸 United States · Scientistsnot measured—
  78. 78Emma WillardEmma Willard1787–1870 · 🇺🇸 United States · Scientists20 decades
  79. 79William Smith ClarkWilliam Smith Clark1826–1886 · 🇺🇸 United States · Scientistsnot measured—
  80. 80Henry M. LelandHenry M. Leland1843–1932 · 🇺🇸 United States · Scientistsnot measured—
  81. 81Edward Porter AlexanderEdward Porter Alexander1835–1910 · 🇺🇸 United States · Scientistsnot measured—
  82. 82Walter HuntWalter Hunt1796–1859 · 🇺🇸 United States · Scientistsnot measured—
  83. 83Charles Doolittle WalcottCharles Doolittle Walcott1850–1927 · 🇺🇸 United States · Scientists4 decades
  84. 84Charles M. SchwabCharles M. Schwab1862–1939 · 🇺🇸 United States · Scientistsnot measured—
  85. 85Edward Charles PickeringEdward Charles Pickering1846–1919 · 🇺🇸 United States · Scientists0 decades
  86. 86Gouverneur Kemble WarrenGouverneur Kemble Warren1830–1882 · 🇺🇸 United States · Scientistsnot measured—
  87. 87Heinrich GöbelHeinrich Göbel1818–1893 · 🇺🇸 United States · Scientistsnot measured—
  88. 88William Henry PickeringWilliam Henry Pickering1858–1938 · 🇺🇸 United States · Scientists0 decades
  89. 89William Barton RogersWilliam Barton Rogers1804–1882 · 🇺🇸 United States · Scientistsnot measured—
  90. 90L. L. LangstrothL. L. Langstroth1810–1895 · 🇺🇸 United States · Scientists3 decades
  91. 91Thomas SayThomas Say1787–1834 · 🇺🇸 United States · Scientists20 decades
  92. 92John Wesley HyattJohn Wesley Hyatt1837–1920 · 🇺🇸 United States · Scientists1 decades
  93. 93James Buchanan EadsJames Buchanan Eads1820–1887 · 🇺🇸 United States · Scientistsnot measured—
  94. 94John Taliaferro ThompsonJohn Taliaferro Thompson1860–1940 · 🇺🇸 United States · Scientistsnot measured—
  95. 95George Washington GoethalsGeorge Washington Goethals1858–1928 · 🇺🇸 United States · Scientistsnot measured—
  96. 96Liberty Hyde BaileyLiberty Hyde Bailey1858–1954 · 🇺🇸 United States · Scientists10 decades
  97. 97Almon Brown StrowgerAlmon Brown Strowger1839–1902 · 🇺🇸 United States · Scientistsnot measured—
  98. 98Jacob PerkinsJacob Perkins1766–1849 · 🇺🇸 United States · Scientistsnot measured—
  99. 99William StanleyWilliam Stanley1858–1916 · 🇺🇸 United States · Scientistsnot measured—
  100. 100John Strong NewberryJohn Strong Newberry1822–1892 · 🇺🇸 United States · Scientistsnot measured—

How this is measured

  • Placing people in time. Each person belongs to the century in which they were most active — around age 35, and never after their death.
  • Who ranks highest. Within a century, people are ranked where two independent signals agree: how many of the world’s Wikipedia language editions cover them, and how many people actually read about them. Article counts alone can be lifted by a person’s own circle; readers cannot.
  • Fame in print. The curves count how often a name appears in Google Books from 1800 to 2019, as a share of all the words printed each year, in the person’s own language wherever that corpus exists. Those decades are over, so each measurement is made once and kept.
  • What is left out. A lifetime is measured only from 1820, when there is enough print to judge; the five years after a death are skipped as obituaries; and a name shared with someone equally notable is credited to neither.