The official standardized simplified word now appeared in 1955 and was implemented in 1956. The purpose is to increase the rate of literacy.
Simplified characters actually simplify the most commonly used words.
In fact, simplified characters appeared in ancient China;
In ancient times, simplified characters were called “俗体” or “通体”.
This is written by Chu Suiliang, a bachelor of the Tang Dynasty Literature Museum.
The words in the circle are the same word, simplified and traditional.