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Boston (US: /ˈbɔːstən/), officially the City of Boston, is the state capital and most populous city of the Commonwealth of Massachusetts, as well as the cultural and financial center of the New England region of the United States. It is the 24th-most populous city in the country. The city boundaries encompass an area of about 48.4 sq mi (125 km2) and a population of 675,647 as of 2020. It is the seat of Suffolk County (although the county government was disbanded on July 1, 1999). The city is the economic and cultural anchor of a substantially larger metropolitan area known as Greater Boston, a metropolitan statistical area (MSA) home to a census-estimated 4.8 million people in 2016 and ranking as the tenth-largest MSA in the country. A broader combined statistical area (CSA), generally corresponding to the commuting area and including Providence, Rhode Island, is home to approximately 8.2 million people, making it the sixth most populous in the United States.

Boston is one of the oldest municipalities in America, founded on the Shawmut Peninsula in 1630 by Puritan settlers from the English town of the same name. It was the scene of several key events of the American Revolution and the nation's founding, such as the Boston Massacre, the Boston Tea Party, the Battle of Bunker Hill, and the siege of Boston. Upon American independence from Great Britain, the city continued to be an important port and manufacturing hub as well as a center for education and culture. The city has expanded beyond the original peninsula through land reclamation and municipal annexation. Its rich history attracts many tourists, with Faneuil Hall alone drawing more than 20 million visitors per year. Boston's many firsts include the United States' first public park (Boston Common, 1634), first public or state school (Boston Latin School, 1635) first subway system (Tremont Street subway, 1897), and first large public library (Boston Public Library, 1848).

Today, Boston is a center of scientific research; the area's many colleges and universities, notably Harvard and MIT, make it a world leader in higher education, including law, medicine, engineering and business, and the city is considered to be a global pioneer in innovation and entrepreneurship, with nearly 5,000 startups. Boston's economic base also includes finance, professional and business services, biotechnology, information technology, and government activities. Boston is a hub for LGBT culture and LGBT activism in the United States. Households in the city claim the highest average rate of philanthropy in the United States. Boston businesses and institutions rank among the top in the country for environmental sustainability and new investment.

Jiawang District, also known as Quancheng District, belongs to Xuzhou City, Jiangsu Province, located in the northeast of Xuzhou, bordering Pizhou City in the east, Tongshan District in the south and northwest, and Zaozhuang City in Shandong Province in the north. Jiawang Mining area, which was founded in 1952, was named Jiawang District in 1965 after several renaming adjustments. Jiawang District has a long history, and human beings settled and thrived long before the Shang and Zhou dynasties. During the Wanli period of the Ming Dynasty, the water was full of grass, and there were springs in the northeast. Jia Wang was called Quancheng. Lin Wang lives because of the large number of people surnamed Jia, so it is called "Jia Jia Wang". In the eighth year of Qing Guangxu, Hu Enxie dug and built a mine in Jia Wang, which opened the 100-year history of coalfield mining in Jia Wang. In the 24 year of Guang Xu, Jia Wang Coal Mine Company was established. "Jia Jiawang" has since been known as "Jia Wang" and is known as "Coal City for one hundred years". Jiawang District has a national comprehensive reality.
Airport In Jiawang District - Xuzhou Guanyin International Airport
Xuzhou Guanyin International Airport (Xuzhou Guanyin International Airport, IATA: XUZ, ICAO: ZSXZ), located in Shuanggou Town, Suining County, Xuzhou City, Jiangsu Province, 45 kilometers away from Xuzhou City, is a 4E-level civil international airport   , is the central airport of Xuzhou Metropolitan Circle and Huaihai Economic Zone.  
Xuzhou Guanyin International Airport was officially opened to navigation on November 8, 1997; it was named Xuzhou Guanyin Airport   ;Renamed to Xuzhou Guanyin International Airport on January 6, 2016   ; On June 8, 2018, the second phase of the expansion project was completed.  
As of January 2019, Xuzhou Guanyin International Airport has two terminals, T1 (international and Hong Kong, Macao and Taiwan) and T2 (China domestic), with a total area of ​​58,000 square meters; there is a runway with a length of 3,400 meters; the apron is 6.3 10,000 square meters, 9 seats   ; As of October 2019, a total of about 39 domestic and international routes have been opened in China   , 39 navigable cities.  
In 2019, the passenger throughput of Xuzhou Guanyin International Airport was 3,005,875 passengers, a year-on-year increase of 19.3%; the cargo and mail throughput was 12,068 tons, a year-on-year increase of 19.9%; the number of take-offs and landings was 49,648, a year-on-year increase of -%; ranking 55th in China respectively , 52nd, and 60th.  
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