• Tulsa
  • Simao District

Tulsa (/ˈtʌlsə/) is the second-largest city in the state of Oklahoma and 47th-most populous city in the United States. The population was 413,066 as of the 2020 census. It is the principal municipality of the Tulsa Metropolitan Area, a region with 1,023,988 residents. The city serves as the county seat of Tulsa County, the most densely populated county in Oklahoma, with urban development extending into Osage, Rogers, and Wagoner counties.

Tulsa was settled between 1828 and 1836 by the Lochapoka Band of Creek Native American tribe and most of Tulsa is still part of the territory of the Muscogee (Creek) Nation.[a]

Historically, a robust energy sector fueled Tulsa's economy; however, today the city has diversified and leading sectors include finance, aviation, telecommunications and technology. Two institutions of higher education within the city have sports teams at the NCAA Division I level: Oral Roberts University and the University of Tulsa. As well, the University of Oklahoma has a secondary campus at the Tulsa Schusterman Center, and Oklahoma State University has a secondary campus located in downtown Tulsa. For most of the 20th century, the city held the nickname "Oil Capital of the World" and played a major role as one of the most important hubs for the American oil industry.

Simao District, which belongs to Pu'er City, Yunnan Province, is located in the south of Yunnan Province, the middle and south of Pu'er City, and the middle and lower reaches of the Lancang River, between 22 °27 degrees north latitude and 101 °27 degrees east longitude, Jiangcheng County to the east, Lancang County and Jinggu Dai Autonomous County to the west, Xishuangbanna Dai Autonomous Prefecture to the south and Ninger County to the north, covering a total area of 3928 square kilometers. Simao District is the starting point of the ancient Tea-Horse Road in history-the Southern Silk Road. It is one of the three major customs towns in Yunnan. It was once known as "Southeast Asian Land Wharf" and "Yinsimao". The main relics in Simao District are Shiping Guild Hall, Simao Wenmiao, Simao Old Customs, Tea Horse Road, etc.; historical figures include League member Lu Zhiyi, honest official Chen Qizhou, and so on. As of 2017, Simao District has jurisdiction over 3 townships and 4 towns
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