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.
... Central Asia for Emperor Han Wu Di[?] Zheng He, (1371-1435), Chinese admiral who travelled widely over the Indian Ocean and other seas, reaching Africa and Arabia and many ...