Woodblock printing and oil lamp: what they have in common

1. Step 1. Woodblock printing — evolved into — Movable type. Bi Sheng replaced the solid block with individual pieces of type.
2. Step 2. Movable type — is made of — Clay. Bi Sheng’s type was made of fired clay.
3. Step 3. Clay — is material for — Oil lamp. Later — clay ones.

Open Evothings