What is the importance of shinto, regent, embassy, and prince shotoku

Prince Shotoku Taishi (574 to 622) of Yamato era acclaimed the throne after the rule of Empress Suiko and is said to be a member of the imperial clan. In his reign, he had institutionalized new constitution basing on the Chinese model in which they have adopted its calendar, religious practice in Confucianism and Taoism and spread Buddhism across Japan. Shinto, a religion based on actions and focusing on rituals became a connector between the present and past lifestyle of Japan. China has also greatly influenced its ethics and philosophy. The Seventeen-Article Constitution has established political rules such as fair trials and officials obeying the reign of the monarch.

Both the han and the roman empire decline as a result of social unrest during their collapse.