The three capitals referred to the three capitals in ancient times. The three capitals of the Tang Dynasty were Jingzhao Prefecture, the western capital (now Xi'an, Shaanxi), Henan Prefecture, the eastern capital (now Luoyang, Henan), and Taiyuan Prefecture, the northern capital (now Taiyuan, Shanxi). The three capitals of the Song Dynasty were Kaifeng Prefecture in Tokyo (now Kaifeng in Henan), Yingtian Prefecture in Nanjing (now Shangqiu in Henan), and Henan Prefecture in the West Capital (now Luoyang in Henan).
A nostalgic game was a classic game that restored the player's childhood through retro game styles and operating habits, allowing the player to reminisce the good times of childhood. These games were usually classic games that were very popular in the past, such as Super Mario, Contra, and the Three Kingdoms. Players could find these nostalgic games through online platforms or download sites to relive their happy memories. Nostalgia games were also a tribute to the games of the past, allowing players to feel the characteristics and charm of the games of that era.
Retro fiction is a type of literature that often draws inspiration from past eras. It can be set in historical periods and may mimic the writing styles, themes, and characters of the past. For example, some retro fiction novels are set in the 1920s and capture the glamour and social changes of that time through their stories and characters.
The capital cities of the Northern and Southern Dynasties were respectively Jiankang in the south (now Nanjing in Jiangsu Province), Pingcheng in the north (now Datong City in Shanxi Province), Luoyang (now Luoyang City in Henan Province), Yecheng (now west of Linzhang County in Hebei Province), and Chang 'an (now Xi'an City in Shaanxi Province).
The background story of " 15 Days in Two Cities " took place in the first year of Hongxi in the Ming Dynasty. At the beginning of the story, Crown Prince Zhu Zhanji's treasure ship was blown up and sunk by the Qinhuai River in Nanjing. At the same time, news of the Emperor's critical illness spread, which triggered a shocking change across the two capitals. In order to save himself and the Great Ming Dynasty, the Crown Prince had to run more than 2,200 li from Nanjing to Beijing in 15 days. On this speedy journey, he faced all kinds of difficulties and dangers. The story centered on the struggle of the crown prince and used the Beijing-Hangzhou Grand Canal as the main scene to show the vivid picture of the people along the Grand Canal in the Ming Dynasty.