Why do people in China call letters letters?

The ancient letters in China were called letters. Books are letters, and ancient books are also called "letters" or "letters", which is an applied style.

However, China's applied style has never rejected the aesthetic literary attribute, especially the integration of letters, and China's ancient lyric prose began with letters. The combination of practicality and aesthetics of letters is perfect.

Extended data:

Analysis of letters and feet;

Footnote is a word, pronounced chǐ dú, which refers to the one-foot-long wooden slips used by the ancients to write; Letter, letter; Words or ink, handwriting. According to records, there are several specifications of wooden slips, but they are about one foot long, so they are called "ruler slips" and are mostly used in calligraphy and painting.

Before the invention of paper, bamboo or silk was used to make pages with long handles for writing notes, expressing feelings and transmitting information. Therefore, there have been many titles such as ruler element, ruler letter, ruler letter, ruler carp, ruler note, ruler letter, ruler book and so on, among which ruler letter is the earliest and most, so it has become synonymous with letters.

References:

Baidu encyclopedia letters