An interesting finding

What kind of structures take the most part of the Chinese characters? It is the left and right structure.

In the ancient China, writing was going from top to bottom, right to left.

To find the cause or the history of this, will be an interesting research. I just take some notes now.

When people created the character, it’s not easy to add more to the existed one to express more complex meaning due to the top to bottom direction writing, is it reasonable?

Why the writing went from top to bottom then, was resulted from the its original material: pieces of bamboo?