The atmosphere is divided vertically into four layers based on temperature: the troposphere, stratosphere, mesosphere, and thermosphere. Throughout the Cycles unit, we'll focus primarily on the layer in which we live-the troposphere. Troposphere. The word troposphere comes from tropein, meaning to turn or change.
For example, the conventional date 1644 marks the year in which the Qing dynasty armies replaced the preceding Ming dynasty according to the dynastic cycle. However, the Qing dynasty was established in 1636 (or even 1616, albeit under a different name), while the last Ming dynasty pretender was not deposed until 1663. This change of ruling houses was a messy and prolonged affair, and the Qing took almost twenty years to extend their control over the whole of China.
It lasted from 1122-211 BC. The Qin Dynasty was the shortest ruling Chinese dynasty. It lasted only 15 years. Emperor Kangxi, the second emperor of Qing Dynasty, was the longest-reigning emperor in the history of China. He ruled China for 61 years during the years from 1661 to 1722. Emperor Modi of Jin (1234), the last emperor of Jin Dynasty, was the shortest-reigning emperor in the history of China.