Chapter 28: Turbulent Times_1
```
Time flies, and years pass swiftly by; in the blink of an eye, sixteen years have gone.
Those sixteen years, neither too long nor too short, but for ordinary people, enough time for the world to transform completely.
In those sixteen years, the era's name changed thrice, from Kaihuang to Renshou, then from Renshou to Daye. Yang Jian, the founding monarch of Great Sui, a formidable ruler of his generation, passed away in the fourth year of Renshou at Renshou Palace, aged sixty-four.
In the same year, in July, the crown prince, Yang Guang, ascended to the throne, initiating the Daye era—thus, he became Emperor Yang of Sui.