The Yongle era was the period in Chinese history corresponding to the reign of the Yongle Emperor of the Ming dynasty, spanning from 1403 to 1424. It was preceded by the Jianwen era and was succeeded by the Hongxi era.
The Yongle era was a significant period in the history of the Ming dynasty, marked by political reorganization and expansion. One of its most notable changes was the relocation of the imperial capital from Nanjing to Beijing, which had a major impact on the administration and strategic center of the empire. The construction of Beijing as the new capital, including the development of palaces and infrastructure, reflected the growing concentration of state power in northern China and established a political framework that lasted throughout the dynasty.
Economically, the period experienced both growth and strain. The state worked to stabilize regions damaged by civil war, leading to an increase in agricultural and textile production. However, the era was also characterized by high fiscal demands, as large-scale construction, military activities, and state-sponsored expeditions put pressure on government finances. This resulted in chronic monetary instability, with overuse of paper currency causing inflation and a decline in public confidence, leading to a shift towards silver and copper as mediums of exchange.
In terms of culture, military, and diplomacy, the Yongle era was defined by the state's ambitious and outward-looking approach. There were significant efforts to compile and preserve knowledge through large scholarly projects, while military policies focused on securing the frontier and projecting power beyond China's borders. The Ming state's expanding diplomatic contacts and maritime activities further solidified its position as a dominant force in East and Southeast Asia.
Background The Yongle Emperor, the third emperor of China's Ming dynasty, was the fourth son of the Hongwu Emperor, the founder of the dynasty. In 1398, the Hongwu Emperor died, and his grandson Zhu Yunwen succeeded to the throne, adopted Jianwen as his era name, and became known as the Jianwen Emperor. After a four-year civil war, the Yongle Emperor usurped the throne in 1402. He did not recognize his predecessor's reign and instead continued the Hongwu era through 1402. The following year, the Yongle era, meaning "Perpetual Happiness", officially began. It was not until 1595 that the Jianwen era was restored to the dynasty's official history by the Wanli Emperor. In August 1424, the Yongle Emperor died while returning from his campaign against the Mongols. He was succeeded by his eldest son Zhu Gaochi, who proclaimed 1425 as the first year of the Hongxi era.
The new capital
The most significant event of the Yongle era was the relocation of the capital from Nanjing (Southern Capital; then officially known as Yingtian) to Beijing (Northern Capital), which had been known as Beiping (Pacified North) until 1403. The idea of moving the capital from Nanjing to the north was first considered by the Hongwu Emperor in the early 1390s. Despite Nanjing's proximity to the empire's economic center in the Yangtze Delta, both the Hongwu and Yongle emperors faced the challenge of governing the empire's northern and western borders from a great distance, which required a significant amount of attention. Additionally, the Yongle Emperor likely regarded Beijing as the center of his personal power, whereas he remained something of an outsider in Nanjing. Beijing was strategically located on the northern border, accessible by the Grand Canal and in close proximity to the sea, making it a convenient location for supplies. Its history as the capital of the Liao, Jin, and Yuan dynasties also added to its significance.
The relocation of the capital was a demanding undertaking that required the large-scale mobilization of people and resources from across the empire. In February 1403, the Emperor initiated the move by designating Beijing as a secondary capital. The city was formally renamed Shuntian (Obedient to Heaven), but it continued to be commonly known as Beijing. He appointed his eldest son, Zhu Gaochi, to administer the city and province and established branches of central ministries and chief military commissions there. In 1404, 10,000 families from Shanxi were relocated to the city, and Beijing and its surrounding areas were granted a two-year tax exemption. The following year, more than 120,000 landless households from the Yangtze Delta were moved north, and construction of government buildings began. Timber was harvested from forests in Jiangxi, Huguang, Zhejiang, Shanxi, and Sichuan to supply the palaces in Beijing. Although artisans and laborers were dispatched from across the empire, construction progressed slowly due to supply constraints.
In March 1409, the Emperor arrived in the north for the first time in seven years, following the end of the first Mongol campaign. When he returned to Nanjing the following year, officials criticized the excessive expenditure on construction in Beijing, leading to reduced spending and a slowdown in construction that lasted several years. From 1414 to the end of 1416, the Emperor remained in Beijing during the campaign in Mongolia. The reconstruction of the Grand Canal was completed in 1415, which greatly aided in the supply of the north. Construction then resumed at a faster pace. The exact number of workers involved in building the city is unknown, but it is estimated to have been several hundred thousand. The chief architects and engineers include Cai Xin (), Nguyễn An (a Viet eunuch), Kuai Xiang and Lu Xiang (). By the end of 1417, most of the palaces were completed, but construction on the walls continued. In 1420, the city was deemed ready for the relocation of the government. On 28 October 1420, Beijing was officially declared the principal capital of the empire, and by February 1421, ministries and other government agencies had relocated to Beijing. The Beijing authorities administered the empire from 1421. Some ministries remained in Nanjing, but their powers were limited to the southern metropolitan area and held little political significance. The cost of supplying Beijing, which was located far from the economically developed regions of the country, was a constant burden on the state treasury.
In 1421, a famine broke out in the northern provinces. At the same time, three major audience halls in the newly built Forbidden City were destroyed by fire. The Emperor regarded the event as a sign of Heaven's displeasure. He called upon government officials to critique the mistakes of the government. A junior secretary named Xiao Yi strongly criticized the decision to build the capital in the north and was subsequently executed. This effectively silenced any further discussion on the matter.
Reconstruction of the Grand Canal
In the centuries before the Yongle era, the Grand Canal had fallen into disrepair and was partly unusable. Early in the Yongle era, rice supplies to Beijing and the northern armies relied on two routes. One ran from Liujiagang in the Yangtze Delta through the East China Sea to Tianjin, but this sea route was dangerous because of storms and piracy. The other passed through inland rivers and canals in Anhui, Shandong, and Hubei, but required multiple transfers of cargo. Annually, 480,000 to 800,000 dan of rice were shipped by sea, while inland routes carried even more, with a total of 2 to 2.5 million dan delivered to the north between 1410 and 1414. This inefficient system placed a heavy burden on the population. The Emperor approved a petition from officials in Shandong for the restoration of a continuous north–south waterway. The government mobilized 165,000 workers to rebuild the canal and constructed fifteen locks in western Shandong. After completion in 1415, transport became faster and cheaper. Rice shipments rose to 5 million dan in 1417 and 4.7 million in 1418, before later stabilizing at 2–3 million annually. Transport was handled by 160,000 soldiers using 15,000 ships, while 47,000 workers maintained the canal. The reopening of the Grand Canal stimulated economic growth along its route, but also ended sea transport of grain to the north, contributing to a decline in naval shipbuilding.
The reopening of the Grand Canal had a positive impact on Suzhou. Its strategic location in the middle of the canal network south of the Yangtze (which was reconstructed after 1403) allowed the city to regain its status as a major commercial hub and experience a return to prosperity after being deprived of it during the reign of the Hongwu Emperor. Nanjing's political and economic influence declined, relegating it to a regional center, though it remained the foremost cultural center of the empire.
Economy Population, agriculture, and crafts Around 1400, the Ming dynasty had a population of 90 million. During the early 15th century, the weather was more stable and warmer compared to before and after. This favorable climate allowed for rich harvests, making agriculture the foundation of the country's prosperity. Although there were occasional local disasters such as epidemics or floods, they did not significantly alter the overall situation. The government provided assistance to affected regions from state reserves.
The Yongle Emperor recognized that supporting the peasants was the most effective way to secure the throne for his descendants. In 1403, when the crops were destroyed by a locust invasion in Henan, he took the initiative to organize relief efforts for the affected population. He also punished negligent officials and rejected the suggestion of Minister of Revenue Yu Xin () to punish officials who were unable to collect taxes in full. The Emperor argued that the root of the problem was the natural disaster, not the officials. In 1404, when he was informed of the increase in silk production in Shandong, he responded that he would not be satisfied until there was enough food and clothing for everyone in the empire, ensuring that no one suffered from hunger or cold.
The northern provinces were impoverished and unproductive, and their local army and administration had become reliant on importing rice from the south during the Hongwu era. The relocation of the capital to Beijing resulted in an increase in the number of soldiers, officials, artisans, and laborers, exacerbating the issue. The government attempted to resettle people from the densely populated south to the north, but the southerners struggled to adapt to the harsh northern climate and many returned to their homes. By 1416, the government had abandoned this forced resettlement policy and instead implemented a strategy of supporting local development. As part of this, the government began selling salt trading licenses to merchants in exchange for rice deliveries to the north. On the other hand, the influx of impoverished immigrants from other parts of north China resulted in an increase in cultivated land and the production of agricultural and textile goods. This also led to the establishment of foundries in Zunhua in Hebei.
Finance and currency