August 21, 2021 (2021-08-21) (Saturday)
Armed conflicts and attacks
Health and environment
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Science and technology
- The world's highest elevation expressway, between Lhasa and Nagqu in Tibet, China, opens. The average elevation of the 295 kilometres (183 mi) expressway is more than 4,500 metres (14,800 ft) above sea level. (China Daily)