The Qianlong era name is the era name of the sixth emperor of the Qing Dynasty, Qing Gaozong Aixin Jueluo Hongli, which means "Heavenly Dao Changlong". The era name was used for sixty years, beginning on February 12, 1736 and ending on February 8, 1796. Born on September 25, 1711 and died on February 7, 1799, Emperor Gaozong of the Qing Dynasty was the fourth emperor after the Qing army entered the customs. During his reign, his commitment to political stability, economic development, and cultural prosperity brought the Qing dynasty to its heyday. During the Qianlong period, China's economic development reached its peak, and great achievements were made in culture and art. Qing Gaozong took a series of measures to strengthen the centralization of power and rectify the rule of officials, so as to make the country politically stable and social order. At the same time, he also focused on economic development, and introduced a series of reforms that promoted the development of agriculture, handicrafts and commerce. In terms of culture, he admired Confucian culture, collated and proofread many ancient classics, popularized traditional culture, and encouraged the emergence and development of new culture. However, there were also some problems and contradictions during the Qianlong period. Social inequality and poverty have become increasingly prominent as a result of population growth and increased land annexation. At the same time, due to the invasion and oppression of Western powers, China is also facing unprecedented challenges and crises. These problems and contradictions gradually intensified in the course of later history, which eventually led to the decline and demise of the Qing Dynasty. Overall, the Qianlong period was an important historical period, which witnessed both the heyday and prosperity of the Qing Dynasty and foreshadowed future problems and crises. Through the study and understanding of the Qianlong period, we can better recognize and understand the development and evolution of Chinese history. 
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