The Chinese phrase Four Great Ancient Capitals of China (中国四大古都 pinyin zhong1 guo2 si4 da4 gu3 du1) refers to Nanjing, Beijing, Xi'an, and Luoyang.
... householder with no husband present, and 18.5% are non-families. 15.2% of all households are made up of individuals and 7.3% have someone living alone who is 65 years ...