• Philadelphia
  • Mengla County

Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., and the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since 1854, the city has been coextensive with Philadelphia County, the most populous county in Pennsylvania and urban core of the Delaware Valley, the nation's seventh-largest and one of world's largest metropolitan regions with 6.245 million residents in 2020. The city's population at the 2020 census was 1,603,797, and over 56 million people live within 250 mi (400 km) of Philadelphia.

Philadelphia was founded in 1682 by William Penn, an English Quaker. The city served as capital of the Pennsylvania Colony during the British colonial era and went on to play a historic and vital role as the central meeting place for the nation's founding fathers whose plans and actions in Philadelphia ultimately inspired the American Revolution and the nation's independence. Philadelphia hosted the First Continental Congress in 1774 following the Boston Tea Party, preserved the Liberty Bell, and hosted the Second Continental Congress during which the founders signed the Declaration of Independence, which historian Joseph Ellis has described as "the most potent and consequential words in American history". Once the Revolutionary War commenced, both the Battle of Germantown and the Siege of Fort Mifflin were fought within Philadelphia's city limits. The U.S. Constitution was later ratified in Philadelphia at the Philadelphia Convention of 1787. Philadelphia remained the nation's largest city until 1790, when it was surpassed by New York City, and served as the nation's first capital from May 10, 1775, until December 12, 1776, and on four subsequent occasions during and following the American Revolution, including from 1790 to 1800 while the new national capital of Washington, D.C., was under construction.

With 18 four-year universities and colleges, Philadelphia is one of the nation's leading centers for higher education and academic research. As of 2021[update], the Philadelphia metropolitan area was the state's largest and nation's ninth-largest metropolitan economy with a gross metropolitan product (GMP) of US$479 billion. The city is home to five Fortune 500 corporate headquarters as of 2022. The Philadelphia skyline, which includes several globally renowned commercial skyscrapers, is expanding, primarily with new residential high-rise condominiums. Philadelphia and the Delaware Valley are a biotechnology and venture capital hub; and the Philadelphia Stock Exchange, owned by NASDAQ, is the nation's oldest stock exchange and a global leader in options trading. 30th Street Station, the city's primary rail station, is the third-busiest Amtrak hub in the nation, and the city's multimodal transport and logistics infrastructure, including Philadelphia International Airport, the PhilaPort seaport, freight rail infrastructure, roadway traffic capacity, and warehouse storage space, are all expanding.

Mengla County, one of the counties under the jurisdiction of Xishuangbanna Dai Autonomous Prefecture in Yunnan Province, is located in the southeast of Xishuangbanna Autonomous Prefecture, with a total area of 7056 square kilometers. Mengla County is half-covered by Laos in the east and south, facing Myanmar across the Lancang River in the southwest, Jinghong City, the capital of the Autonomous Prefecture in the northwest, and Jiangcheng Hani and Yi Autonomous County in Pu'er City to the north. In 2010, the total population of Mengla County was 281700. Mengla County is one of the counties inhabited by ethnic minorities. A total of 26 ethnic minorities thrive here, accounting for 70% of the total population of the county. The main ethnic minorities are Dai, Hani, Yao and Yi. In 2013, Mengla County had jurisdiction over 7 towns and 3 townships (including 2 ethnic townships), with a total of 4 communities and 52 administrative villages. In 2011, Mengla County completed
Travel Notes In Mengla County
Both elegant and popular, the only oasis at 21 degrees north latitude (Xishuangbanna, Dongchuan Red Land, Maitreya East Charm)
New Year's Eve, I'm on the road It can be said that this is a well-prepared journey, instead of just walking away like before. I have planned a lot i
Banna is poisonous! Just after the new year, I was addicted again, and I was fascinated by driving the ancient tea-horse road again!
Self-driving tea horse ancient road purpose Where should a real trip to Xishuangbanna go? It is more than 2800 square kilometers of tropical rainfor
4 days and 3 nights Rainforest Diary: Come to Banna for a self-driving tour, it’s fun to play like this
Today, the epidemic is basically under control, and many places have been cleared, and work has begun to resume in an all-round way. All cases in our
Beautiful Xishuangbanna (3)
Primitive Tropical Rainforest Wangtianshu Scenic Area January 21, 2015 According to the optimized schedule, today is the original tropical rainforest