Printing Press: the whole path

1
Tools & MakingI
Stone Tools
The first cutting edge
3.3 Mya
2
Fire & ShelterI
Control of Fire
Light, heat and cooked food
1 Mya
3
Materials & ChemistryII
Pottery
Clay turned to stone by fire
18,000 years ago
needs 2
4
Materials & ChemistryII
Charcoal
Wood cooked slowly under earth
c. 4,500 BCE
needs 1, 2
5
Writing & CommunicationII
Writing
Knowledge that outlives memory
c. 3,300 BCE
needs 1, 3
6
Materials & ChemistryIII
Bronze
Copper and tin, harder together
c. 3,300 BCE
needs 2, 3, 4
7
Materials & ChemistryIII
Iron Smelting
Wider adoption around 1200 BCE; ore, charcoal and a bloomery
c. 1,200 BCE
needs 4, 6
8
Materials & ChemistryIII
Steel
Iron with just enough carbon
c. 1,000 BCE
needs 4, 7
9
Writing & CommunicationIII
Paper
A cheap surface for memory
c. 150 BCE
needs 3
10
Writing & CommunicationIII
Printing Press
Movable type, copied by the thousand
c. 1440
Goal · needs 5, 7, 8, 9