Why is Nanchang also called Hongcheng?

Because Nanchang is located at the intersection of the Gan River, Poyang Lake and the Yangtze River, two rivers and one lake, "three rivers and five lakes", floods have always been raging, and the ancestors here suffered from floods.

In the face of natural disasters, they did not blindly wish for God's injustice or move to their new home. Instead, they bravely faced the test of nature. With the support of tenacity and belief, they fought every time they encountered. They can defeat floods, and it is they who ensure the prosperity of Nanchang.

In order to make later generations more prepared for danger and to ensure that the spirit of water control can last forever, the ancestors used the word "Hongcheng" to build an unfailing monument.

Extended information:

Other nicknames for Nanchang:

Nanchang was known as Yuzhang, Hongdu, Longxing, Nandu, etc. in ancient times.

Nanchang means "prosperity in the south" and "prosperity in southern Xinjiang". The name of Nanchang city changed, and there were many aliases. It was called Yuzhang in the Han Dynasty, Hongzhou in the Tang Dynasty, Longxing in the Song Dynasty, and Nanchang in the Ming Dynasty. In 1926, the Northern Expeditionary Army captured Nanchang and established the city. ?

Nanchang City was built in 202 BC, which means "prosperity in southern Xinjiang and prosperity in the south". It is a famous national historical and cultural city. Wang Bo, one of the four outstanding figures of the early Tang Dynasty, called it a place with "extreme treasures of things and treasures and outstanding people" in the "Preface to Prince Teng's Pavilion".

As a clear administrative region, Jiangxi's first name was "Yuzhang". Later, the scope of "Yuzhang" in the division was narrowed and gradually became a division roughly equivalent to today's Nanchang City, Jiangxi Province. Later, "Yuzhang" disappeared from the official division name and became another name for Nanchang.

Baidu Encyclopedia-Nanchang