Why do the names of ancient people always have two characters? It seems that Han has become three characters in the future. Is there any reason for this?

There are many reasons. The most important thing is the development rules of language and writing.

For example:

When infants and young children speak, they always speak "single syllables" (ah, wow, wow, wow) at first; when they grow older, they become accustomed to saying "double-syllable" words. , such as "Mom, Mom".

Only by combining "single syllables" and "double syllables" can we have "three-character words" and "four-character words", and have rich and colorful combinations.

Same reason:

Everyone knows that human beings evolved from "ancient apes" and could not "speak" at the beginning, but could only "howl" (monophone) ).

Later, labor transformed people, and language began to develop.

So, if you look through the "Book of Songs", most of them are of the type "the so-called beauty is on the side of the water". Later, there were "five-character poems", "seven-character poems" and so on.