She once invested in the Great Wall. She has a private army. Qin Shihuang called her "Big Sister". Who is this man?

She once invested in repairing the Great Wall, and she also had a private army. The person who was honored as the eldest sister by Qin Shihuang was Ba Qing, a female entrepreneur in Qing Dynasty. She embarked on the road of getting rich in business, often helping the poor and being dubbed the Virgin.

In ancient times, women's status was not high. Since ancient times, there has been a saying that whether a woman is virtuous or not, women cannot participate in politics, and harem cannot participate in politics. These are all oppression of women. But in the Qin Dynasty, there was a legendary businesswoman named Baqing who once supplied hundreds of tons of mercury to the mausoleum of the First Qin Emperor. In ancient times, it was difficult to mention mercury without high technology, but many emperors put a lot of mercury in their tombs after their deaths to deter grave robbers.

In ancient times, people extracted mercury by burning cinnabar in the air to remove sulfur, and then extracted mercury. Mercury will also be lost in the refining process, so a lot of cinnabar is needed. At that time, vermilion was mainly concentrated in Bashu, where there was a rich woman. So Qin Shihuang asked her to go to Xianyang. During the conversation, they learned that Baqing's husband was a young entrepreneur. He has been running Dansha for many years and is already a very rich man. Baqing and her husband are also respectful, but things are unpredictable. Her husband died after he fell ill.

So they forged a deep friendship, and Baqing even donated half of his property to help Qin Shihuang build the mausoleum and the Great Wall. Qin Shihuang was very grateful to her and allowed her to have a private army to protect the trade routes. Baqing and Qin Shihuang became good friends, and they often chatted together, so later Qin Shihuang called him Big Sister directly, and Baqing was appreciated by the emperor for his ability and wisdom.