How many appellations were there in ancient times? What were they?

Sanchun: The ancients used to call the first month of the lunar calendar Meng Chun, February Midspring, and March Ji Chun, which are collectively called Sanchun. Therefore, the "three spring" mentioned in some poems actually refers to spring.

Jiuchun: Spring lasts for 3 months ***90 days, and it takes 10 days in spring, so it is also called Jiuchun.

Youth: In spring, the vegetation is extremely green and lush, so it is called "youth".

Qingyang: Spring is also called "Qingyang" because of its fresh air and mild sunshine.

Sunny: Spring is beautiful, so it is also called sunny.

Fangchun: In spring, the weather gets warmer, herbs sprout, thousands of trees grow, and exotic flowers and herbs compete with Fang Fei, so spring is nicknamed "Fangchun".

Besides, spring has other names, such as Cangling, Yangchun, Yang Jie, Zhao Jie and Shu Jie.

2. Nickname of summer:

Harmony: Er Ya called it "Xia Wei", and later generations extended it to "Zhu Xia".

Three Summers: The ancients regarded April as Xia Meng, May as midsummer, and June as the end of summer, which were collectively called "Three Summers".

Nine summers: Summer lasts for three months ***90 days, so it is also called "Nine summers".

Long summer: The days in summer are particularly long, so it is called "long summer".

Festive Festival: The Outline of Emperor Liang Yuan says: "Summer Festival is called Festive Festival", also known as "Festive Preface".

3. Another name for autumn:

Sanqiu: In ancient times, July was Qiu Meng, August was Mid-Autumn Festival, and September was Qiu Ji, collectively known as Sanqiu, which means autumn.

Jiuqiu: The whole autumn is about 90 days, which is divided into 90 days, so autumn is called Jiuqiu.

Jintian: According to the ancient Five Elements, autumn belongs to gold, so it is called Jintian or Golden Autumn.

Su Qiu: Autumn is golden and white, and autumn is also called Su Qiu.

Shang and Autumn: The five tones in ancient times (official and commercial tone) coordinate with the four seasons, and Shang is autumn. The sound of business is piercing, corresponding to the cold air in autumn, hence the name of business autumn.

Autumn is also called business order, business festival and white business.

4. Another name for winter:

Three winters: The ancients regarded October of the lunar calendar as winter, November as midwinter and December as Ji Dong, and collectively called three months "three winters" to refer to winter.

Nine winters: Winter lasts for three months and ninety days, so winter is also called "Nine winters".

Clear winter: Everything is depressed in winter, and it is cold between heaven and earth, so winter is also called "clear winter".

Dong Xuan: "Dong Xuan" is black. In ancient times, the four directions were the directions of the four seasons, and the winter in the north was dark, so winter was also called "Dong Xuan".

Poor Yin: In ancient times, spring and summer were sunny, autumn and winter were cloudy, and winter was the last season of the year, so it was called "poor Yin".

Hokuriku: Hokuriku originally refers to the position of the sun in winter, and later refers to winter.

In addition, the nickname of winter is "extra year".