Some mathematicians have pointed out that the appearance of "0" was originally meant to show that there is no, but Indian Buddhism has this empty concept. So Indians accepted this figure very early.

On the other hand, the churches in Europe were all using Roman numerals at that time, and they were very opposed to the appearance of "0" and thought it was a blasphemy against God. So the church tried its best to prevent the use of "0".

A Roman scholar came across the number "0" in an astronomy book. He found it very useful and decided to popularize it among the public. As a result, the poor scholar was arrested by the Pope and tortured, leaving ten fingers disabled. Nevertheless, after many years, people accepted "0" because they realized that it was too useful.

The extended data number 1 can be written like a pencil.

The number 2 is like a duck swimming in the water.

The number 3 is like an ear that listens to sounds.

The number 4 is like a flag flying in the wind.

The number 5 is like a hook to buy food.

The number 6 is like a whistle.

The number 7 is like a sickle for mowing grass.

The number 8 is like a twisted gourd.

The number 9 floats in the air like a balloon.

10 This number is like chopsticks and eggs.