Which solar term introduced Long Summer?

1, long summer is the seventh of the 24 solar terms; In the long summer, the sun is at 45 degrees of the yellow meridian, and the festival will be held from May 5 to 7. Long summer means the beginning of summer. However, the temperature varies from place to place, and the time of entering summer is actually inconsistent. According to climatology, the five-day average temperature is higher than 22℃ as the standard in summer.

There are four seasons in a year, 24 solar terms in a year, and 6 solar terms in each season. The spring rain shakes the spring and clears the valley, and the summer is full of mountains and summers. Autumn dew, autumn frost, little snow in winter and cold in winter. Summer: Long summer, Little Man, Mangzhong, Summer Solstice, Little Summer and Big Summer.