The total angle is the ancient name for children's childhood, which refers to the age of eight or nine to thirteen or fourteen. In ancient times, children divided their hair into left and right halves and tied it in a knot at the top of their heads, which was shaped like two horns, so it was called "total horn".

The ancients called children of different ages when they were young:

The first time refers to the time when a child is born, and later it is also called a birthday. "Li Sao" records: "The emperor began to see more, and Zhao Xi became famous."

Naked babies are babies under one year old. Because the baby's skin is slightly red.

Teeth, onomatopoeia, baby's voice, meaning 1 year.

Childhood refers to children aged 2-3.

Chèn means that boys are 8 years old and girls are 7 years old.

Yellow mouth refers to1children under 0 years old.

Kindergarten refers to 10 years old. "Book of Rites Quli Shang" records: "Ten years of life is called children."