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江苏海安地处长江三角洲平原,东临黄海,现为苏中水陆交通枢纽。邮政通信事业发展较快。 在汉初(公元前195—154年),开官运盐河(今通扬河),长195里,途经今海安,始开水上交通之先河。东晋义熙七年(411年),建宁海县;唐初(626年),宁海县并人海陵县,唐中宗景龙二年(708年)。分海陵县为海安、海陵两县,至此始有“海安”名。当时海安有镇,海安县治海安镇;唐时,全国邮政交通已逐步发展,以长安为中心,分东、西、南、北4路邮政交通干线网络,全国共设官办邮驿1639个,海安属东路商丘,开封邮路
Jiangsu MSC is located in the Yangtze River Delta plain, east of the Yellow Sea, is now the Soviet Union in water and land transport hub. Rapid development of postal communications. At the beginning of the Han Dynasty (195-154 BC), the government opened the salt river (now Tong Yang River) with a length of 195 miles. It passed through this sea and started its water transportation. The Eastern Jin Dynasty Yi Xi seven years (411 years), built Ninghai County; early Tang Dynasty (626 years), Ninghai County and Hailing County, Tang Zhongzong Kinglong two years (708 years). Hailing County for the MSC, Hailing two counties, so far only “MSC” name. At that time, there was a town in Hai’an and Hai’an County in Hai’an County. At the time of the Tang Dynasty, the postal and postal transport across the country was gradually developed. Chang’an was the center, with 4,386 postal and postal trunk lines connecting East, West, South and North. Is an East Road Shangqiu, Kaifeng post