• Baltimore
  • Longchang 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.

Longchang is a county-level city hosted by Neijiang City in Sichuan Province, which is located in the southeast of Sichuan Province and the southern end of Neijiang City. The ground span ranges from 105 degrees 02 to 105 degrees 26 degrees east longitude and from 29 degrees 11 to 29 degrees 32 degrees north latitude. It is adjacent to Rongchang District of Chongqing City in the east, Lu County of Luzhou City in the south, Fushun County of Zigong City and Daan District of Zigong City in the west, Dongxing District in the north, 210 kilometers away from Chengdu and 138 kilometers away from Chongqing. Longchang covers an area of 794.41 square kilometers; it has jurisdiction over 2 streets and 13 towns; it has a total population of 778000 in 2015; in 2015, Longchang achieved a GDP of 23.3 billion yuan and a per capita GDP of 36096 yuan. Belongs to the subtropical humid monsoon climate, the annual average temperature is 17.7 ℃, the frost-free period is 324 days, and the annual rainfall is 10%.
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