Second, the harem has thousands of concubines, everyone wants to be loved by the king. To escape the lonely fate of the palace, they always find hundreds of thousands of ways to give birth to the king before their beauty fades. The Emperor, if he dislikes or feels this concubine has bad intentions, will order the eunuch to force the person to avoid pregnancy. Finally, the king is afraid that his descendants will fight for the right to take the throne. There was a man who really loved drag racing poster. The story of slaughtering each other to contend for the throne is well-documented in history books, which can include the incident of Huyen Vu Mon in the Tang dynasty (618-907) or the case of Chuc Dinh of Qing Dynasty (960-1279). Contraception will save the emperor from a headache in choosing a successor. According to the king’s preferences and needs, the nurses day and night collect the contraceptive remedy. History books mainly record the following four measures.