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  • Tongcheng

Tucson (/ˈtuːsɒn, tuːˈsɒn/; Spanish: Tucson, O'odham: Cuk-Ṣon) is a city in and the county seat of Pima County, Arizona, United States, and is home to the University of Arizona. It is the second largest city in Arizona behind Phoenix, with a population of 542,629 in the 2020 United States census, while the population of the entire Tucson metropolitan statistical area (MSA) is 1,043,433. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area (CSA). Both Tucson and Phoenix anchor the Arizona Sun Corridor. The city is 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.–Mexico border. Tucson is the 34th largest city and the 53rd largest metropolitan area in the United States (2014).

Major incorporated suburbs of Tucson include Oro Valley and Marana northwest of the city, Sahuarita south of the city, and South Tucson in an enclave south of downtown. Communities in the vicinity of Tucson (some within or overlapping the city limits) include Casas Adobes, Catalina Foothills, Flowing Wells, Midvale Park, Tanque Verde, Tortolita, and Vail. Towns outside the Tucson metro area include Benson to the southeast, Catalina and Oracle to the north, and Green Valley to the south.

Tucson was founded as a military fort by the Spanish when Hugo O'Conor authorized the construction of Presidio San Agustín del Tucsón in 1775. It was included in the state of Sonora after Mexico gained independence from the Spanish Empire in 1821. In 1853, the United States acquired a 29,670 square miles (76,840 km2) region of present-day southern Arizona and southwestern New Mexico from Mexico under the Gadsden Purchase. Tucson served as the capital of the Arizona Territory from 1867 to 1877. Tucson was Arizona's largest city by population during the territorial period and early statehood, until it was surpassed by Phoenix by 1920. Nevertheless, population growth remained strong during the late 20th century. In 2017, Tucson was the first American city to be designated a "City of Gastronomy" by UNESCO.

Tongcheng, a county-level city under the jurisdiction of Anhui Province, is hosted by Anqing City. It is located in the southwest-central part of Anhui Province, with the Dabie Mountains in the west and the Yangtze River in the south, Lujiang County and Congyang County in the east, Shucheng County in the north, Qianshan City in the west, Huining County and Yixiu District in Anqing City in the south, with an administrative area of 1472 square kilometers. Tongcheng was called "Tongguo" in ancient times, which got its name because it is suitable for planting paulownia. In the second year of Tang Zhide (757), it was officially named "Tongcheng". In August 1996, Tongcheng withdrew its county and established a city. Tongcheng is high in the northwest and low in the southeast, with stepped distribution of mountains, hills and plains, overlapping mountains in the northwest, gentle slopes in the central hills, and vertical and horizontal paths in the southeast plain; it belongs to the subtropical humid monsoon climate with four distinct seasons and abundant rainfall. Tongcheng has a total population of 754000 (2018), including 12 towns and 3.
Airport In Tongcheng - Anqing Tianzhushan Airport
Anqing Tianzhushan Airport (IATA: AQG, ICAO: ZSAQ), located in Xiangshan Village, Yixiu District, Anqing City, Anhui Province, China, 6 kilometers south of Anqing city center, is a 4C-level domestic military-civilian joint regional airport   .
On December 22, 1993, Anqing Airport opened civil aviation business; on October 18, 2005, Anqing Airport was renamed "Anqing Tianzhushan Airport"; on February 1, 2015, the index level of the flight area of ​​Anqing Tianzhushan Airport was changed to 4C   ; On July 18, 2022, the T2 terminal of Anqing Tianzhushan Airport will be opened   .
As of July 2022, the terminal building of Anqing Tianzhushan Airport covers an area of ​​13,928 square meters, with 4 boarding bridges; 6 C-class seats on the civil aviation apron; the runway is 2,800 meters long and 50 meters wide; Annual passenger throughput of 1.3 million passengers, cargo and mail throughput of 5,500 tons, and aircraft take-off and landing of 13,402 sorties     [twenty one]  .
In 2021, Anqing Tianzhushan Airport will handle a total of 596,482 passengers, a year-on-year increase of 38.2%, ranking 121st in the country; cargo and mail throughput will be 2,899.4 tons, a year-on-year increase of 3.1%, ranking 87th in the country; sorties, a year-on-year increase of 35.6%, ranking 141st in the country   .
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