In fact, before the industrial revolution began, the daily necessities used by people came from daily life. In terms of written records and writing, there are brushes in the East, and the corresponding ones in the West are quill pens or chicken quill pens. With the development of modern civilization, fountain pens and various ballpoint pens have long replaced quill pens. These quills that have accompanied the development of human civilization have now been sealed in the memory of history. Now let Origami lead us all to recall that era that only belonged to agricultural civilization.
A piece of square paper.
