800–899
The 9th century
Whose working lives fell in the 9th century. Books are measured from 1800 and readers from 2015, so for this period we can say who lived then, not who was talked about then.
Lived then
The most notable people whose working lives fell in the 9th century, ranked where Wikipedia coverage and readership agree.
#PersonIn print, 1800–2019Echoed
- 1
Pope Formosus816–896 · 🇮🇹 Italy · Religious Figures1 decades - 2
Pope John VIII820–882 · 🇮🇹 Italy · Religious Figures9 decades - 3
Pope Stephen VIdied 897 · 🇮🇹 Italy · Religious Figures0 decades - 4
Pope Leo IV790–855 · 🇮🇹 Italy · Religious Figures5 decades - 5
Pope Paschal I775–824 · 🇮🇹 Italy · Religious Figures13 decades - 6
Pope Boniface VIdied 896 · 🇮🇹 Italy · Religious Figures0 decades - 7
Pope Sergius III860–911 · 🇮🇹 Italy · Religious Figures0 decades - 8
Pope Leo Vdied 905 · 🇮🇹 Italy · Religious Figures0 decades - 9
Pope Nicholas I820–867 · 🇮🇹 Italy · Religious Figures0 decades - 10
Pope Adrian IIIdied 885 · 🇮🇹 Italy · Religious Figures0 decades - 11
Pope John X860–929 · 🇮🇹 Italy · Religious Figures0 decades - 12
Pope Gregory IV795–844 · 🇮🇹 Italy · Religious Figures1 decades - 13
Pope Adrian II792–872 · 🇮🇹 Italy · Religious Figures0 decades - 14
Pope Benedict III810–858 · 🇮🇹 Italy · Religious Figures0 decades - 15
Pope Theodore II840–897 · 🇮🇹 Italy · Religious Figures0 decades - 16
Pope Sergius II790–847 · 🇮🇹 Italy · Religious Figures0 decades - 17
Pope Romanusdied 897 · 🇮🇹 Italy · Religious Figures0 decades - 18
Pope Valentine780–827 · 🇮🇹 Italy · Religious Figures0 decades - 19
Pope John IX840–900 · 🇮🇹 Italy · Religious Figures0 decades - 20
Pope Stephen IV770–817 · 🇮🇹 Italy · Religious Figures0 decades - 21
Pope Marinus I830–884 · 🇮🇹 Italy · Religious Figures0 decades - 22
Pope Stephen Vdied 891 · 🇮🇹 Italy · Religious Figures0 decades - 23
Pope Eugene II780–827 · 🇮🇹 Italy · Religious Figures0 decades - 24
Pope Anastasius III801–913 · 🇮🇹 Italy · Religious Figures0 decades
- 25
Ceccardus of Luni800–860 · 🇮🇹 Italy · Religious Figuresnot 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.