Time Zone |
Asia/Shanghai |
Standard Time GMT / UTC |
UTC+8 |
Daylight Saving Time |
Daylight saving time is not observed in the current region. |
Time Zone |
Africa/Niamey |
Standard Time GMT / UTC |
UTC+1 |
Daylight Saving Time |
Daylight saving time is not observed in the current region. |
The Great Wall of Gansu, which stretches across the Hexi Corridor, was a military barrier and transportation throat for the ancient Central Plains Dynasty to explore the Western Regions, and is mainly composed of the remains of the Great Wall of the Han and Ming Dynasties. The Great Wall of the Han Dynasty was built mainly of rammed earth, with Yumen Pass, Yang Pass and other passes along the route, witnessing the prosperity of the Silk Road; the Great Wall of the Ming Dynasty was built mostly of masonry, with Jiayuguan Pass, the "most powerful pass in the world," as the core node, with well-preserved citadels, piers and beacon flints. As an important part of the Great Wall of China, the Great Wall of Gansu not only embodies the wisdom of the ancient military defense system, but also carries the historical memory of the intermingling of civilizations between the Central Plains and the Western Regions, which was included in the World Cultural Heritage List in 1987, and has become an important physical testimony for the study of ancient border culture and the history of the Silk Road.
Diffa, the capital of the Diffa region in southeastern Niger, is located on the southern edge of the Sahara Desert and shares a border with Nigeria, making it one of the most important border cities in Niger. The city is located in the lower Niger River basin around the climate of the tropical desert climate, hot and dry throughout the year, the average annual precipitation is less than 300 millimeters. The economy is based on agriculture and animal husbandry, and the surrounding areas are rich in millet, sorghum and livestock. Diffa, as a regional trade center, undertakes the function of cross-border trade with neighboring countries, such as Nigeria, and is especially famous for the trade of livestock, agricultural products and handicrafts. The city is culturally diverse, with Hausa, Tuareg and Kanuri ethnic groups living in the area, and is unique in its crafts such as traditional leather weaving and silversmithing. Despite infrastructural challenges, Diffa remains an important economic and cultural node in the south-east of the Niger, thanks to its strategic location and rich cultural heritage.