China has a long history, in the thousands of years of the river, there are many dynasties have left their own footprints, such as known as one of the eight wonders of the world of the Great Wall, originally it was built in the Spring and Autumn Warring States, Zhao Qinyan and other countries with this to resist the Xiongnu and other princes, Qin Shi Huang unified the six kingdoms, it was connected into a city wall of ten thousand miles, in the Tang and Han Dynasties there were many consolidations, to the Ming Dynasty, Shanhaiguan became the strongest fortress against the Later Jin, so that it could not cross the Thunder Pond for decades. Most of the walls we see today were built during the Ming Dynasty.
China has the longest time-consuming project, the name is very simple, called "Grand Canal", 2500 years, this project has begun construction, some history lovers actually know, the Grand Canal includes the Sui and Tang Grand Canal, Beijing-Hangzhou Grand Canal, Zhejiang East Grand Canal three parts, a total length of 2700 kilometers, as early as the end of the Spring and Autumn, Wu Wang Fucha in the growth of national strength, bent on going north to fight against the State of Qi, to dominate the Central Plains, for this reason under his order, Wu Guo opened the three canals of Xuxi, Hangou and Huanggou early, so that, Wu Guoren was able to reach the vicinity of Wuhu along Taihu Lake and turn into the Yangtze River, which greatly facilitated transportation, and the history books described the scene of digging the canal at that time as "lifting a shovel like a cloud", and when people waved their hoes, they could form a dark cloud, which was enough to see the vastness of the momentum.
After Qin Shi Huang unified the Six Kingdoms, he continued to develop it to the south, on the basis of which he dug the Lingqu canal in the Xianggui area to facilitate his rule and military control over the Baiyue region, and during the Han Dynasty and the Wei and Jin Dynasties, canals such as the Pingyu Canal, the Quanzhou Canal, the New River and the Trough Canal were opened successively, which also accelerated the development and cultural prosperity of the southern region, and in the Spring and Autumn Period of the Warring States, Jiangnan has always been regarded by the Central Plains as an uncivilized land that does not respect the king's law, and its status in the Central Plains Dynasty has become increasingly important.
During the Sui Dynasty's Sui Dynasty, he made a summative plan for the canals of the past thousand years, he connected the various waterways, and in March of the first year of Daye (605), more than one million men and women in henan counties opened the Ji Canal, which diverted the water from the Yellow River from Banzhu and injected it into huai shui, and then opened the Hangou Canal, the Yongji Canal, and the Jiangnan Canal. Millions of people were recruited by the Sui Emperor, and forced labor led to a boiling of public resentment, which was also the main reason for the demise of the Sui Dynasty.
"The predecessors planted trees, the descendants cooled", and the Tang Dynasty on the basis of the canal, the national strength of unprecedented prosperity, Japan's envoys to the Tang Dynasty arrived in Fujian and other places, can directly take a boat in the canal, straight to the eastern capital Luoyang, Tang Taizong to Tang Dezong period, because of war, floods and other reasons, the canal was interrupted, for this reason the Tang Dynasty mainly repaired and maintained these interrupted waterways.
During the Song, Yuan, Ming and Qing dynasties, Jiangnan became the most important place for supplying grain in China, so the imperial court also attached great importance to the canal, and the Ming and Qing dynasties specially set up canal water transport management, responsible for the management of river traffic mining, dredging, dredging, and the Ming and Qing dynasties stipulated that the load capacity of canal boats was 400 stones. The payload of Ming Dynasty vessels must not exceed 3 feet, and the annual water transport capacity is about 4 million stones. The Qing Dynasty stipulated that the carrying capacity of the boat should not exceed 3 feet and 5 inches, and the annual transport volume was about 4 million stones.
After the founding of New China, this project continued, and after 1959, combined with the South-to-North Water Diversion Project, the more than 400-kilometer canal section from Xuzhou to the Yangtze River was expanded, the irrigation area and drainage area along the coast were expanded, and the safety of 15 million mu of farmland and the lives and property of millions of people in the Xiahe area was ensured. Water conservancy projects in this area are still under construction.
Looking at the 2,500-year history of the Grand Canal, it happens to be a history of China's rise and fall, and the flow of the river also symbolizes the brave spirit of the Chinese nation's indomitable struggle against natural hazards, and with its own efforts, it has shaped another miracle in the history of the world.