As early as the Tang Dynasty, Guanganmennei Street, where Caishikou was located, was called Tanzhou Street at that time, which was the downtown area of Youzhou City. During the Ming and Qing dynasties, there were two main ways for mainlanders to enter Beijing: the waterway was the Beijing-Hangzhou Grand Canal crossing Tongzhou; Land along Han Jing Road, crossing Lugou Bridge and entering Beijing from Guang 'anmen. As soon as you enter Guang 'anmen, you will find the food market. So there are many inns, shops and teahouses here, and pedestrians are busy all day. According to Yang Maojian's description in Jingsheng Miscellanies, "Xuanwumenwai Street is southbound, near Caishikou, and there is a temple of wealth; There is Wenchang Hall in Shaodong Iron Gate, which is a place for banquets. Most of the singers in Xicheng are here, and they are all theaters. " Henian Hall is located in the north of Caishikou Street and belongs to the central area. In front of the door, Yan Song, who was in power in the ruling and opposition parties in the Ming Dynasty, wrote the three Chinese characters "Crane Year Hall". Signs are eye-catching, which naturally becomes the most obvious sign of entering Beijing, so that when people introduce the road to Beijing, they often take the Crane Hall as the guide: crossing Lugou Bridge is Guang 'anmen, crossing Guang 'anmen, and when they see the Crane Hall, they will enter Beijing. I'm afraid there are only a few literati and political celebrities living in Beijing during the Ming and Qing Dynasties who have nothing to do with the food market. Yan Song and Yangjiao Mountain Mansions are all nearby; Only the former Caishikou Hutong once lived in Zeng Guofan, Zuo, Liu Guangdi and Cai Yuanpei. Qiu Jin once taught in a girls' school in an alley, and Li Dazhao once founded Morning Bell in an alley. Tan Sitong's former residence, Lu Xun's former residence and Kang Youwei's former residence are all nearby, and they are all very close to the Henian Hall. In the hundreds of years after the reign of the emperor shunzhi in Qing Dynasty, Caishikou became a land of "punishing people in the city and abandoning people". The Book of Rites records that "a knight is in the DPRK, and he is with the soil." Punish people in the city and abandon them with the public. "Visible, downtown practice in China has a very long history, and the Qing Dynasty just continued the tradition. Su Shun, a "six gentlemen" in the Reform Movement of 1898, and Yang Jisheng, a good minister of the Ming Dynasty, are said to have been killed in front of the Henian Hall in Caishikou. Every day before the government wants to kill people, He Niantang will be told: Go on a business trip tomorrow, prepare wine and food, don't tell anyone, and pay later. The next day, the drugstore was going to close. The beheading officer and the executioner first concentrated in the crane hall and had a big meal. After a full meal, they put the beheading table in front of the crane hall. At 3 noon, Zhu Bi, the beheading officer, circled, and suddenly his head fell to the ground. Therefore, "begging for medicine before sunset in the Year of the Crane" has become a slang in old Beijing. Generally, after the execution, the executioner will, as usual, ask for some tranquilizers from He Niantang, and the onlookers often flock to it, and some even grab the rope that binds the prisoners. It is said that it is not strange to tie a cow to a horse; Some rushed to buy the calligraphy of prison officials, saying that they could exorcise evil spirits. Some prisoners' families even paid off the executioner in advance, and asked him to put a big steamed bun into the neck cavity of the deceased at the right time when his head fell to the ground, so as to avoid blood spilling and haunting.

Therefore, the story of blood steamed bread spread far in Qing Dynasty. It is said that Lu Xun's novel Medicine was created by absorbing such allusions. In earlier years, such blood steamed bread was also preserved in Heniantang. In this place where downtown, celebrities, Buddhist temples and life-saving temples are in conflict, Heniantang has a long history of more than 600 years, combining the demeanor of a scholar with Chinese medicine, Chinese medicine and health care with the unique style of opening a shop by literati. It is well-known, with not only famous prescriptions for health preservation and treatment, but also many historical celebrities, such as Yan Song and his son, Yang Jisheng, a famous anti-Japanese star in the Ming Dynasty, and Tan Sitong, a pioneer of reform.