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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.

Hechuan District is a municipal district under the jurisdiction of Chongqing, located in the upper reaches of the Yangtze River, northwest of Chongqing. Hechuan District is the six major satellite cities in Chongqing. as of 2013, the region covers an area of 2356.21 square kilometers, has jurisdiction over 7 subdistrict offices and 23 towns, and has a resident population of 1.3756 million in 2016. Hechuan District is one of the birthplaces of Ba culture, and there are famous historical and cultural sites such as fishing City and Laitan Town in Hechuan District. Zhou Dunyi, Zhang Senkai, Lu Zuofu, Tao Xingzhi and other celebrities have taught and started businesses here. It is the hometown of Liu Literature, the first young hero in New China. Hechuan District is the main road from Chongqing to Shaanxi, Gansu and other places and the transportation hub of northwest Chongqing and northeast Sichuan. Hechuan District is rich in coal, rock salt, natural gas, strontium ore and limestone, and the largest glass in the Midwest.
Airport In Hechuan District - Chongqing Jiangbei International Airport
Chongqing Jiangbei International Airport (Chongqing Jiangbei International Airport, IATA: CKG, ICAO: ZUCK), located in Lianglu Street, Yubei District, Chongqing, China, 19 kilometers from the city center, is a 4F civil international airport.   It is one of the eight major regional hub airports in China;    It is an air port that implements a 144-hour transit visa-free policy.  
Chongqing Jiangbei International Airport was officially completed and opened to traffic on January 22, 1990, and was named Chongqing Jiangbei Airport; it was renamed Chongqing Jiangbei International Airport in 1998; the second phase of expansion was completed in October 2005; the third phase of expansion was completed in December 2010; in 2017 The fourth phase of expansion was completed in August.      In November 2020, the T3B terminal and the fourth runway project officially started.  
According to information in May 2022, Chongqing Jiangbei International Airport has three terminal buildings, namely T1, T2 (domestic) and T3A (domestic and international), with a total of 737,000 square meters;   There are three runways with lengths of 3,200 meters, 3,600 meters, and 3,800 meters; the apron is 1.66 million square meters, with 209 seats,     The cargo area is 230,000 square meters; it can guarantee an annual passenger throughput of 45 million person-times, a cargo and mail throughput of 1.1 million tons, and an aircraft take-off and landing of 373,000 sorties.     As of the end of 2018, a total of 329 domestic and international routes have been opened, covering 203 cities.  
In 2021, Chongqing Jiangbei International Airport will handle 35.7663 million passengers, a year-on-year increase of 2.4%; cargo and mail throughput will be 476,700 tons, a year-on-year increase of 15.9%; aircraft movements will be 280,600, a year-on-year increase of 2.2%; 4. 8th and 6th.  
When the T3A terminal of Chongqing Jiangbei International Airport is opened, T1 will be suspended. Except the domestic flights of West Air, Sichuan Airlines, China Airlines, Spring Airlines, Jiuyuan Airlines, Guilin Airlines, Longjiang Airlines, Qingdao Airlines, Donghai Airlines, Changan Airlines, Suparna Airlines, and Lucky Air operate at T2   , and the rest of the airlines' flights will be moved to T3A.   In addition, the airport has opened a free shuttle bus that circulates between the three terminals.  
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