Judging from historical data, as early as 1600 years ago, there was a wave of immigrants in Shenzhen, and mainlanders made great contributions to the development of Xin'an.

Among the six counties under the jurisdiction of Dongguan County, the first one is Bao'an County. The county seat and the county seat are in the same place. It is an important transportation hub for rivers and seas and a major coastal defense military town.

Xin'an Ancient City created the source of Shenzhen's urban development and became the center of Shenzhen's political, economic and cultural life.

Historical changes are often reflected in the saying that "if things are divided for a long time, they must be reunited, and if things are together for a long time, they must be divided."

The same is true for the development and changes of Xin'an Ancient City.

In the sixth year of Liang Tianjian (507), Dongguan County was changed to Dongguan County, and Chen moved the county administration to Zengcheng.

In the second year of Emperor Suzong's reign (757), the name of Bao'an County was changed to Dongguan, and the county seat was moved from Nantou to today's Dongguan City.

After the Five Dynasties, Song and Yuan Dynasties, Shenzhen's administrative affiliations underwent some changes.

The Nantou City we see today is the "Dongguan Guards Thousand Households City" built on the site of the old city by Cui Hao, the left guard of Guangzhou in the 27th year of Hongwu's reign in the Ming Dynasty (1394).

In the first year of Wanli of the Ming Dynasty (1573), Xin'an County was divided from Dongguan County, and the city was designated as the county seat.

/According to archaeological discoveries in recent years, Shenzhen has a history of 6,000 years.

According to information on underground archaeological excavations and ancient sites above ground, Shenzhen has a long history.

Pottery and stone tools discovered at the Dahuangsha and Dameisha dune sites show that humans were living on this beautiful and fertile land as early as the Neolithic Age, five or six thousand years ago.

Created Shenzhen's glorious history and culture.

It has been identified that Shenzhen has 103 cultural sites, 234 ancient tombs, 68 ancient buildings and historical memorial buildings, 97 modern historical sites and revolutionary memorial buildings, and 12 old customs stations and boundary monuments.

After screening, the municipal government has announced 36 cultural relics protection units in three batches.

Among them, the boundary monuments of Dapeng City and "Zhongying Street" were recognized by the provincial government as provincial cultural relics protection units in 1989.

Shenzhen is located on the coast of the South China Sea, with coconut breeze and sea charm, fine waves and white sand, and pleasant scenery. It has always been regarded as the "Southern Gate of China and the Border Scenic Line".

Since the Eastern Jin Dynasty, Shenzhen has played an important role in politics, culture, economy, transportation, coastal defense and military affairs.

Archaeological materials prove that as early as the Neolithic Age, five or six thousand years ago, humans were working, living, and multiplying in the beautiful and fertile land of Shenzhen.

Since the Qin Dynasty, the Baiyue residents in Shenzhen have been under the centralized feudal control. The Han Dynasty has established salt officials in Shenzhen. Han Dynasty tombs have been found in Nantou, Xixiang, Shajing, Dapeng, and Li Chengwu Village in Hong Kong.

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From the funerals and unearthed cultural relics, it can be seen that advanced Central Plains culture was integrated at that time.

During the Eastern Jin Dynasty and the Southern Dynasties for more than 250 years, Shenzhen was at its peak. Dongguan County was established, and six counties including Bao'an and Xingning were under its jurisdiction. Its jurisdiction included the Pearl River Delta and Huiyang. The jurisdiction of Bao'an County at that time was probably today's Dongguan City, Shenzhen City and

Hong Kong.

In the Tang Dynasty, the waters of Shenzhen became a hub for sea transportation.

A garrison town was set up in Nantou, where Lingnan Jiedu troops were stationed; a "sea patrol camp" was set up in the Song Dynasty. Since the Song Dynasty, Shenzhen has become a hub for maritime transportation and trade in southern China, and has experienced significant economic development.

The Ming Dynasty was the renaissance period in the history of Shenzhen. In the 27th year of Hongwu in the Ming Dynasty (1394), Nantou Dongguan Guarded Qianhusuo City and Dapeng Guarded Qianhusuo City were built.

Later, Nantou Village was established and a large military organization was formed, serving as "the outer guard of Humen and the screen of the provincial capital" to resist Japanese crowns, pirates and other foreign invaders.

In the 16th year of the Zhengde reign of the Ming Dynasty (1521), the soldiers and civilians of Nantou, led by Wang Hong of Patrol Sea Road, annihilated the Portuguese fleet in the waters of Nantou.

By the Jiaqing period of the Qing Dynasty, the number of residents in Xin'an County had reached 225,979.

The population increased greatly, and agricultural production, fishery, and salt industries developed greatly.

In the second year of the Republic of China (1913), Xin'an County was renamed Bao'an County, and its administrative office was still located in Nantou City.

During the period between the old democratic revolution and the new democratic revolution, the people of Shenzhen wrote an epic chapter for national liberation.

In particular, the Anti-Japanese Dongjiang Guerrilla Column was active in the Huidong and Bao areas, severely attacking the Japanese invaders and escorting cultural figures trapped in Hong Kong to the liberated areas, making significant contributions to China's cultural undertakings.

Shenzhen has a long history and developed culture, so it is rich in cultural relics and historic sites and has many scenic spots, such as the "Jinji Suiyuan" Temple in the Jin and Sui Dynasties, Haiguang Temple in the Tang Dynasty, Lingdu Temple in the Southern Tang Dynasty, Huaidu Temple in the Southern Tang Dynasty, and

Chiwan Tin Hau Temple, one of the "Eight Scenic Spots of Xin'an" from the Ming and Qing Dynasties, as well as Lingding Mountain, Longqi'ao, Qiniang Mountain, etc.

By the 1980s, after Shenzhen was designated as China's first special economic zone, the tourism industry developed extremely rapidly. The newly built tourist attractions and facilities were uniquely charming and famous at home and abroad for their novel, unique and unique style.

Answered by: Shui Weixing - Juren Level 4 10-5 12:20 From historical data, as early as 1600 years ago, there was a wave of immigrants in Shenzhen, and mainlanders made great contributions to the development of Xin'an.

Among the six counties under the jurisdiction of Dongguan County, the first one is Bao'an County. The county seat and the county seat are in the same place. It is a transportation hub for rivers and seas and an important coastal defense military town.

Xin'an Ancient City created the source of Shenzhen's urban development and became the center of Shenzhen's political, economic and cultural life.

Historical changes are often reflected in the saying that "if things are divided for a long time, they must be reunited, and if things are together for a long time, they must be divided."

The same is true for the development and changes of Xin'an Ancient City.

In the sixth year of Liang Tianjian (507), Dongguan County was changed to Dongguan County, and Chen moved the county administration to Zengcheng.