Although the earliest known recipe for paper dates from Han days, there is evidence suggesting that paper had been in use in China for roughly nine centuries before.
Prereqs:
Increases output of timber from Logging Camps in a settlement with a Sawmill by Level 1.
150; 150
Time to complete: Medium
Artisanship
A bad workman quarrels with the man who calls him that. —Ambrose Bierce
Prereqs:
Increases output of timber from Logging Camps in a settlement with a Sawmill by Level 2
Resource cost:
250; 250
Time to complete: Long
Prefabrication
Efficiency is sometimes a matter of finesse rather than excess.
Prereqs:
Increases output of timber from Logging Camps in a settlement with a Sawmill by Level 3.