The word "Cosmic Center in Caoxian County" originated from online buzzwords, originally from a short video platform. A blogger shouted the slogan "666 Cao County, Heze City, Shandong Province" with a Shandong dialect accent, which caused many netizens to imitate or ridicule. Cao County, located in Heze City, Shandong Province, is the largest county in Shandong Province with the largest population and the largest labor export county. In the past, farmers in Cao county mainly relied on going out to work to maintain their income.