• Tucson
  • Nanjiang County

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.

Nanjiang County, under the jurisdiction of Bazhong City, Sichuan Province, is located on the northeast edge of Sichuan Province. It covers an area of 3382.8 square kilometers, has jurisdiction over 27 towns and 21 townships, and has a resident population of 612500 in 2017. Nanjiang County has a long history, with a history of 1500 years. Emperor Liang Wudi of the Southern Dynasty usually bought Nanjiang County for six years (525 years). It is famous because "the river is difficult to wade". Western Wei Gongdi two years (555 years) changed to Pandao County. The Northern Zhou Dynasty relocated Nanjiang County, Yuan to Yuan 20 years (1283) into Huacheng County. Ming Zhengde 11 years (1516) reset, renamed Nanjiang County, named after the Nanjiang River in the south of Micang Mountain. Nanjiang County is a national key county for poverty alleviation and development, the first batch of national pilot demonstration counties for the construction of main functional areas, a national demonstration area for ecological protection and construction, and a comprehensive national new type of urbanization.
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Travel Asks In Nanjiang County