Library Web

Routes of Knowledge

Two roads on one map: the alphabet heading east from Sinai and the Levant, paper heading west from China, and the places where they crossed.

2 routes · 22 stops

Show
Map of the route: Routes of Knowledge12345678910123456789101112
The lines show the order of the stops, not the roads actually travelled. A hollow circle marks a stop that rests on tradition. Equal Earth projection.

Year by year

  1. 19th century BC

    Serabit el-Khadim

    Hieroglyphs become letters

    The Road of the Alphabet, stop 1
  2. c. 1000 BC

    Byblos

    Twenty-two letters for a king's coffin

    The Road of the Alphabet, stop 2
  3. 8th century BC

    Eretria

    The Greeks add vowels

    The Road of the Alphabet, stop 3
  4. c. 570–550 BC

    Rome

    Greek letters become Latin

    The Road of the Alphabet, stop 4
  5. c. 509–494 BC

    Persepolis

    The empire writes in Aramaic

    The Road of the Alphabet, stop 8
  6. 105

    Luoyang

    Cai Lun brings the emperor a better paper

    The Road of Paper, stop 1
  7. 267

    Hegra

    Aramaic letters learn Arabic

    The Road of the Alphabet, stop 12
  8. c. 313

    Dunhuang

    Merchants write home on paper

    The Road of Paper, stop 2
  9. c. 313

    Dunhuang

    Sogdian letters, on Chinese paper

    The Road of the Alphabet, stop 9
  10. 751

    Samarkand · by tradition

    The prisoners of Talas, as the story goes

    The Road of Paper, stop 3
  11. c. 800

    Baghdad

    Paper fills the caliph's offices

    The Road of Paper, stop 4
  12. 9th–10th century

    Qocho

    Turkic in Sogdian letters

    The Road of the Alphabet, stop 10
  13. 862

    Constantinople

    A prince asks for teachers

    The Road of the Alphabet, stop 5
  14. 863

    Mikulčice

    New letters for the Slavs

    The Road of the Alphabet, stop 6
  15. c. 900

    Preslav

    Cyrillic, named for a man who did not make it

    The Road of the Alphabet, stop 7
  16. c. 950

    Fustat

    Egypt gives up papyrus

    The Road of Paper, stop 5
  17. 11th century

    Fez

    The paper city of the far west

    The Road of Paper, stop 6
  18. 1154

    Xàtiva

    Spain's paper, praised east and west

    The Road of Paper, stop 7
  19. c. 1225

    Khirkhira

    The Mongols write in Uyghur letters

    The Road of the Alphabet, stop 11
  20. c. 1283

    Fabriano

    Italy remakes the sheet

    The Road of Paper, stop 8
  21. 1390

    Nuremberg

    Paper crosses the Alps

    The Road of Paper, stop 9
  22. c. 1495

    Hertford

    England makes its own paper

    The Road of Paper, stop 10

Which way did each road run?

The two roads run against each other. The alphabet set out from Sinai and the Levant around 1850 BC, by the dating most specialists accept. One branch went west to Greece and Rome; another went east through the Persian empire and Central Asia to the Mongols. Paper set out from China. A palace official presented an improved paper to the emperor in 105, and by about 313 merchants were writing on it at the Chinese frontier. From there it went west, to Baghdad, Egypt, Spain and at last England.

They also moved at different speeds. Paper crossed from China to England in about fourteen hundred years, carried along one road by merchants, officials and craftsmen. The alphabet took longer and spread wider: about thirteen centuries from Sinai to Rome, and some three thousand years to reach the Mongols. Each people that took it changed it, so on the map it looks less like a road than a tree.

Where did the two roads meet?

In six places, from the Chinese frontier to Spain.

Dunhuang, around 313. Sogdian merchants living in China wrote letters home on paper, in an alphabet descended from Aramaic. The Sogdians had both things at once: paper, which came from China and which they would carry west, and an alphabet, which came from the west and which they would hand on east. The alphabet did not reach China, though. The letters were written by foreigners, and Chinese writing did not change.

The Library Cave at Dunhuang, sealed around 1000. Cave 17 of the Mogao caves, near the town, held manuscripts, mostly on paper, in more than twenty languages and scripts. Sogdian, Old Uyghur and a Hebrew prayer leaf are written in descendants of Aramaic. Tibetan, Khotanese and Sanskrit use scripts of the Indian Brahmi family, whose link to Aramaic is still argued. And there is Chinese. Three kinds of writing share one material.

Samarkand and Sogdiana. This was the home of the Sogdian alphabet, and one of the letters lost near Dunhuang was addressed to Samarkand. When an Arab army took a mountain fortress near Panjakent in 722, its ruler left an archive behind, much of it in Sogdian script and some of it on paper. After the Arab conquest, Samarkand’s famous paper carried Arabic letters.

Baghdad, around 800. Paper entered the caliph’s offices in the Arabic script, which descends from Aramaic through the Nabataean letters of Hegra. From Baghdad to Xàtiva, the paper of one road was written mainly in an alphabet from the other.

Fustat. The Cairo Geniza, in the old city, kept centuries of Jewish writings, mostly from the 10th to the 13th century and many of them on paper. They are in Hebrew letters, whose square script is another descendant of Aramaic.

Al-Andalus, 11th and 12th centuries. The Missal of Silos, a Latin book for the Mass, is usually counted as the oldest surviving European book written partly on paper, probably paper made in Muslim Spain. In 1154 an Arab geographer praised the paper of Xàtiva, and its papermakers kept working after a Christian king of Aragon took the town in 1244. Here the Latin alphabet, the western line of the old road, first met paper in Europe. Fabriano, Nuremberg and Hertford follow from this meeting.

Why do the roads never meet at the start?

Because they begin in different worlds. Luoyang, where paper’s road starts, wrote in Chinese characters, which are not an alphabet. The first letters were carved in Sinai long before paper existed. Each road needed the other to be well on its way before they could cross.

Follow each one on its own page: the Road of Paper, from a Chinese court to an English mill, and the Road of the Alphabet, from the turquoise mines of Sinai to the Mongolian steppe.

Routes of knowledge