A brief overview of the history of the Grand Canal

The Grand Canal began to be dug in the late Spring and Autumn period. In 486 B.C., in order to dominate the Central Plains, Wu Wangfucha used the natural rivers, lakes and harbors of the Yangtze River Delta to dredge the "ancient waterway" from Suzhou to Changzhou to Yangzhou in the north, and dug a ditch (from Yangzhou to the river, northeast through Sheyang Lake, and then northwest to Huai'an into the Huai River). Later, the Qin, Han, Wei, Jin and Northern and Southern Dynasties continued to construct and extend the river.

The Tang and Song dynasties continued to dredge and renovate the Grand Canal. In the Tang Dynasty, the Jun River was built with embankments to facilitate the transportation of fibers. The navigable weir built on the canal since the Jin Dynasty has been successively rebuilt into a single-insert gate lock that can not only adjust the navigable water depth of the canal, but also enable the boats to pass back and forth.

In the Song Dynasty, the earthbank of the canal was rebuilt into a stone revetment fiber road, and the single-plug gate lock was changed to a double-type plug-in gate lock with upper and lower locks (the prototype of the modern lock), so that ships could pass through the lock safely. The canal's ability to pass has also been improved. In 1282, the Yuan Dynasty began to dig the Jeju River, and from the current Jining, Wen, and Surabaya as the source, the river opened 150 miles to the north to receive the water (equivalent to the location of the later Daqing River, and the Yellow River seized the Daqing River into the sea in 1855).

After the opening of the Jeju River, boats can travel from the Jianghuai River to the Yellow River, Surabaya and Jeju River to Ansan Hajishui. The Ming and Qing dynasties both built their capitals in Beijing and expanded the Grand Canal in the Yuan Dynasty. In the Ming Dynasty, the Huihe sluice dam was rectified and navigable was restored; In 1411, the expansion and reconstruction of the Huitong River, the diversion of Wenshui to Nanwang Lake, the use of the favorable topography of the main terrain of Nanwang Lake, the construction of Nanwang water tank, seven-tenths of the water flow north, three-tenths of the water flow south, solve the problem of water source of the Huitong River, and increase the construction of locks to 51.

Summary. The Grand Canal is a great water conservancy building created by the working people in ancient China, which was built in 486 B.C., including the Grand Canal of Sui and Tang Dynasties, the Grand Canal of Beijing and Hangzhou and the Grand Canal of East Zhejiang, with a total length of 2,700 kilometers, spanning more than 10 latitudes of the earth, spanning Beijing, Tianjin, Hebei, Shandong, Henan, Anhui, Jiangsu, Zhejiang 8 provinces and municipalities directly under the central government, running through the Great Plain of North China, reaching the five major water systems of Haihe River, Yellow River, Huai River, Yangtze River and Qiantang River, which is the main artery of north-south traffic in ancient China. The Grand Canal has been around for more than 2,500 years and still plays an important role today.

The length of the Grand Canal varied in different periods, reaching its longest at 2,700 kilometers during the Sui and Tang dynasties. Throughout the history of the Grand Canal, the Sui and Tang dynasties realized the north-south connection of the Grand Canal, and the Song and Yuan dynasties straightened the Grand Canal centered on Luoyang, making the Grand Canal more efficient. The Tang and Song dynasties dredged and renovated the Grand Canal, which became an important waterway transportation artery in ancient China.

Dear, the following is the answer to the question.

The Grand Canal is a great water conservancy building created by the ancient Chinese working people, was built in 486 BC, including the Sui and Tang Dynasties, the Beijing-Hangzhou Grand Canal and the East Zhejiang Grand Canal, with a total length of 2,700 kilometers, spanning more than 10 latitudes on the earth, spanning Beijing, Tianjin, Hebei, Shandong, Henan, Anhui, Jiangsu, Zhejiang Xiangyousheng 8 provinces and municipalities directly under the central government, running through the North China Great Plain, reaching the Haihe River, the Yellow River, the Huai River, the Yangtze River, the Qiantang River five major water systems, is the main artery of north-south traffic in ancient China. The Grand Canal has been around for more than 2,500 years and still plays an important role today. The length of the Grand Canal varied in different periods, reaching its highest length of 2,700 kilometers during the Sui and Tang dynasties.

In the entire history of the Grand Canal, the Sui and Tang dynasties realized the north-south connection of the Grand Canal, and the Song and Yuan dynasties straightened the Grand Canal centered on Luoyang, making the Grand Canal more efficient. The Tang and Song dynasties dredged and renovated the Grand Canal, which became an important waterway transportation artery in ancient China.

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I am glad to answer for you, a brief introduction to the history of the Grand Canal: The Grand Canal is a great project on the eastern plain of China, a great water conservancy building created by the ancient Chinese working people, the longest canal in the world, and the earliest and largest canal in the world. The Grand Canal was built in 486 BC.

A brief history of the Grand Canal.

Dear <> am glad to answer for you, a brief introduction to the history of the Grand Canal: The Grand Canal is a great project on the Zaobu Plain before China's East Hunger, a great water conservancy building created by the ancient Chinese working people, the longest canal in the world, and the earliest and largest canal in the world. The Grand Canal was built in 486 BC.

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The Grand Canal includes three parts: the Sui-Tang Grand Canal, the Beijing-Hangzhou Grand Canal and the East Zhejiang Grand Canal, with a total length of 2,700 kilometers, spanning more than 10 latitudes of the Orange Spine Globe, spanning Beijing, Tianjin, Hebei, Shandong, Henan, Anhui, Jiangsu, Zhejiang 8 provinces and municipalities directly under the central government, running through the Great Plain of North China, reaching the five major water systems of Haihe, Yellow River, Huai River, Yangtze River and Qiantang River, which is the main artery of north-south traffic in ancient China, and the history of the Grand Canal has continued for more than 2,500 years.

The Grand Canal is an important water conservancy project in ancient China, which originated in the Spring and Autumn Period, and after many constructions and expansions, it formed a 1,794-kilometer-long canal from Tongzhou in the south of Beijing to the urban area of Hangzhou Yinqizhou. The Grand Canal was once an important economic and cultural exchange channel in Chinese history, and it is also one of the longest, oldest and most complete man-made canals in the world. The Grand Canal was built around 486 BC to solve the flooding of the Huangfeng Jiaobi River and the inconvenience of waterways.

With the passage of time, the Grand Canal gradually became an important channel for cultural exchanges between the East and the West, reaching its peak in the Tang and Song dynasties. During this period, many cities and ports sprang up on both sides of the Grand Canal, and cities such as Yangzhou, Suzhou, and Hangzhou prospered as a result. However, during the Ming and Qing dynasties, due to changes in the geographical environment and the emergence of new means of transportation such as railways, the Grand Canal gradually lost its former glory.

Despite this, in modern society, the Dayun Fancha River is still regarded as an important cultural heritage and tourist attraction, and is included in the UNESCO World Heritage List.

The Grand Canal, the full name of which is the Beijing-Hangzhou Grand Canal, is an important water conservancy project and transportation system in ancient China, with a total length of 1794 kilometers, spanning 9 provinces and cities including Beijing, Tianjin, Hebei, Shanxi, Shandong, Anhui, Jiangsu, Zhejiang, and Henan. As early as the Spring and Autumn Period and the Warring States Period, China began to build canals. Over the course of its history, the canal has been renovated and remodeled several times.

During the Sui Dynasty, the Grand Canal was restored to use, and it was completely renovated and reinforced. During the Tang Dynasty, along with the social and economic prosperity, the Grand Canal gradually became an important source of water for north-south transportation, connecting the Central Plains and the Jianghuai River. During the Ming and Qing dynasties, the Grand Canal was further repaired and upgraded, and became one of the main trunk lines of China's domestic river and water transportation, which played an important role in promoting the social and economic development at that time.

In modern times, due to the emergence of new means of transportation such as railways and highways, the function of the Grand Canal has gradually been neglected. However, with the rise of tourism, the Grand Canal has also become important again and has become an important tourist route, showing the historical and cultural value of China's ancient water conservancy civilization.