They used palm leaves, clay, animal skin and paprus.
North Korea is often percevid as the Hermit kingdom completly isolated from rest of the world but North Korea maintains diplomatic realations with 164 Independent states.
Answer:
Language is the appropriate base for communication which is used to understand other's expression and makes others understand.Without communication,socialization is not possible and culture can't be transferred to new generation.
I think he made a desicion that people can only learn from nature not harsh life
