Chapter 335 [The Ladder of Civilization]
The race from "history" had finally climbed another rung on the ladder of civilization.
Chen Yan read about how some tribes gradually grew stronger, annexing more and more tribes and occupying larger territories and spheres of influence.
Some tribes achieved breakthroughs in productivity, domesticating more wild animals, acquiring the ability for animal husbandry, and unlocking new skill books.
Others domesticated plants, forming the rudiments of an agricultural civilization, taking over more land, and turning land into the greatest guarantee of productivity.
Until one day, Chen Yan read a record.
There was a tribe originally living near a large mountain. After a wildfire broke out, burning for many days, the surviving tribe members returned to the mountain and discovered stones that had been burned for days.
Inside, they found something extremely hard—much stronger than the wooden or stone tools they were accustomed to using.
