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Columbus (/kəˈlʌmbəs/) is the state capital and the most populous city in the U.S. state of Ohio. With a 2020 census population of 905,748, it is the 14th-most populous city in the U.S., the second-most populous city in the Midwest, after Chicago, and the third-most populous state capital. Columbus is the county seat of Franklin County; it also extends into Delaware and Fairfield counties. It is the core city of the Columbus metropolitan area, which encompasses 10 counties in central Ohio. The metropolitan area had a population of 2,138,926 in 2020, making it the largest entirely in Ohio[a] and 32nd-largest in the U.S.

Columbus originated as numerous Native American settlements on the banks of the Scioto River. Franklinton, now a city neighborhood, was the first European settlement, laid out in 1797. The city was founded in 1812 at the confluence of the Scioto and Olentangy rivers, and laid out to become the state capital. The city was named for Italian explorer Christopher Columbus. The city assumed the function of state capital in 1816 and county seat in 1824. Amid steady years of growth and industrialization, the city has experienced numerous floods and recessions. Beginning in the 1950s, Columbus began to experience significant growth; it became the largest city in Ohio in land and population by the early 1990s. The 1990s and 2000s saw redevelopment in numerous city neighborhoods, including Downtown.

Qianzhong, known as Baoning in ancient times, is a county-level city hosted by Nanchong City, Sichuan Province. it is located in the northeast of Sichuan Basin, in the middle reaches of Jialing River, at the southern foot of Qinba Mountain, surrounded by mountains and water in three directions. It is bordered by Bazhong City and Yilong County in the east, Nanbu County in the south, Jiange County in the west and Cangxi County in the north. For more than 2000 years, it has been an important military town for Bashu. Langzhong City covers an area of 1878 square kilometers and has jurisdiction over 5 streets, 19 towns and 4 townships, with a total population of 859192 (2016). It is a demonstration city of ecological construction in China, an excellent tourist city in China, a thousand-year-old county in the world, and the hometown of Chinese Spring Festival culture. Yuanzhong is known as "Langyuan Wonderland" and "Ba-Shu wants to rush". Du Fu, a poet of the Tang Dynasty, left a famous saying here that "the world is rare in the south of Langzhou". The territory is home to China's four most well-preserved
Travel Guides In The Ancient City of Langzhong
Travel Sights In The Ancient City of Langzhong
Travel Notes In The Ancient City of Langzhong