Materials of Memory

Listicle

Materials of Memory

Seven surfaces and systems that changed how knowledge travels.

1. 1

   ~105 CE

   Cai Lun’s paper report

   Eastern Han records credit Cai Lun with presenting a practical plant-fiber sheet to the court—lighter and cheaper than silk or bamboo slips. Earlier fiber sheets existed; his report helped standardize a technology that sped the spread of writing.

2. 2

   c. 1040s

   Bi Sheng’s movable type

   In Song China, Bi Sheng arranged fired-clay characters for printing—the earliest well-attested movable type, centuries before European metal type.

3. 3

   1443–1446

   Hangul promulgated

   King Sejong’s phonetic alphabet was designed so more people in Korea could read and write beyond elite classical Chinese. Adoption grew over generations, not overnight.

4. 4

   c. 1450s

   Gutenberg’s press

   In Mainz, metal movable type, oil-based ink, and a press made books cheaper and more uniform across Europe—accelerating, rather than inventing, the idea of print.

5. 5

   1455

   Gutenberg Bible

   The first major European book produced with movable type showed that high-quality volumes could be made at industrial scale for their day.

6. 6

   1829

   Braille published

   Louis Braille’s raised-dot code gave blind readers an efficient tactile system. Earlier tactile schemes existed; Braille’s design eventually became the global standard.

7. 7

   1886

   Linotype machine

   Ottmar Mergenthaler’s hot-metal line caster sped newspaper and book composition, helping daily print culture keep pace with industrial cities.