• Baltimore
  • Mianyang  City

Baltimore (/ˈbɔːltɪmɔːr/ BAWL-tim-or, locally: /bɔːldəˈmɔːr/ bawl-da-MOR or /ˈbɔːlmər/ BAWL-mər) is the most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic, and the 30th most populous city in the United States with a population of 585,708 in 2020. Baltimore was designated an independent city by the Constitution of Maryland[a] in 1851, and today is the most populous independent city in the United States. As of 2021, the population of the Baltimore metropolitan area was estimated to be 2,838,327, making it the 20th largest metropolitan area in the country. Baltimore is located about 40 miles (64 km) north northeast of Washington, D.C., making it a principal city in the Washington–Baltimore combined statistical area (CSA), the third-largest CSA in the nation, with a 2021 estimated population of 9,946,526.

Prior to European colonization, the Baltimore region was used as hunting grounds by the Susquehannock Native Americans, who were primarily settled further northwest than where the city was later built. Colonists from the Province of Maryland established the Port of Baltimore in 1706 to support the tobacco trade with Europe, and established the Town of Baltimore in 1729. The first printing press and newspapers were introduced to Baltimore by Nicholas Hasselbach and William Goddard respectively, in the mid-18th century.

The Battle of Baltimore was a pivotal engagement during the War of 1812, culminating in the failed British bombardment of Fort McHenry, during which Francis Scott Key wrote a poem that would become "The Star-Spangled Banner", which was eventually designated as the American national anthem in 1931. During the Pratt Street Riot of 1861, the city was the site of some of the earliest violence associated with the American Civil War.

Mianyang, also known as "China Science and Technology City", is a prefecture-level city in Sichuan Province, located in the northwest of Sichuan Basin, in the middle and upper reaches of the Fujiang River. Qingchuan County and Jiange County of Guangyuan City to the east, Nanbu County and Xichong County of Nanchong City to the east, Shehong City of Suining City to the south, Luojiang District, Zhongjiang County and Mianzhu City of Deyang City to the west, and Aba Tibetan and Qiang Autonomous Prefecture and Wen County of Gansu Province to the northwest. It is between 30 °42 miles north latitude 33 °03 'north longitude and 103 °45 miles east longitude, covering a total area of 20248.4 square kilometers. Since the second year of Gaozu of the Han Dynasty (201 BC),
Airport In Mianyang  City - Mianyang Nanjiao Airport
Mianyang Nanjiao Airport (Mianyang Nanjiao Airport, IATA: MIG, ICAO: ZUMY) is referred to as Mianyang Airport; it is located on Airport East Road, Tangxun Street, Economic and Technological Development Zone, Mianyang City, Sichuan Province, China, 10 kilometers away from the center of Mianyang. It is a 4D civil transport Airport   .
Mianyang Nanjiao Airport was approved for construction in 1994 and named Mianyang Nanjiao Airport   ; Construction started in July 1997; it was officially completed and opened to navigation on April 28, 2001   .
Mianyang Nanjiao Airport has T1 and T2 terminals, with a total area of ​​48,000 square meters; a runway with a length of 2,400 meters; an apron of 111,000 square meters and 20 parking spaces; the annual passenger throughput is guaranteed to be 6 million.     As of November 2022, 59 routes and 42 cities have been opened.  
In 2019, the passenger throughput of Mianyang Nanjiao Airport was 4,159,400 passengers, a year-on-year increase of 5.6%; the cargo and mail throughput was 8,800 tons, a year-on-year increase of 16.8%; the number of takeoffs and landings was 189,900, a year-on-year increase of 7.6%; ranking 49th in China respectively , 62nd, 17th.  
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