This 180 year is arranged according to the nine palaces of Luoshu, and each palace is in charge of 20 years, that is, one hurdle, two Kun, three earthquakes, four rafters, five middle schools, six cadres, seven crosses, eight roots and nine separations, and the cycle is repeated. The Neoproterozoic period starts from 1864 and is arranged as follows:
Thoughts and research on the representatives of Yi Yun Palace in Shangyuan
Second Cloud Gong Kun represents salary and growth 1884- 1903.
The palace of the 3rd Universiade represents light and progress 1904- 1923.
Representing the reputation of the Universiade in the mid-Yuan Dynasty, harmony is 1924- 1943.
The palace in the May 5th Movement represented power and ruled 1944- 1963.
Six movements represent vitality, and the decision is 1964- 1983.
Xia Yuan: Yun Qi to the Palace represents charm and communication.
The Eighth National Games Palace represents economy and reform from 2004 to 2023.
Going out of the palace during the Ninth National Games represents the reputation and feelings from 2024 to 2043.