I have read about the Shang dynasty in school, so how they developed writing is in my notebook. When fortune tellers became a thing, they wrote a fortune on a bone and threw the bones into a fire. The fortune teller would read the cracks on the bone. They used that writing for documents on paper.
The practice that continuously happen in the South even
after the largely vanished in the North is Dueling. This is a way of having to
engage combat between two people in which they have weapons and rules provided
in means of honorable conditions.
Improving roads and vehicles of transportation allowed for increasingly far-flung marketplaces in medieval Europe, which had an impact on traditional estates of society.