Claim: Luanping County, regarded as the "home of Standard Chinese",  is a county in Chengde, northeastern Hunan Province, China with a total population of 293,200 as of 2017.
Evidence: Luanping County (simplified Chinese: 滦平县; traditional Chinese: 灤平縣; pinyin: Luánpíng Xiàn) is a county of northeastern Hebei Province, with the Great Wall of China demarcating its border with Miyun District, Beijing to the southwest.