Why was Wu Zetian replaced by Wu Zetian as a courtesan in the Tang Dynasty

For those who are very interested in Wu Zetian of the Tang Dynasty, the History Encyclopedia editor brings detailed articles for your reference. Why was Wu Zetian replaced by Wu Zetian in the Tang Dynasty as a female figure? Who is this related to?
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In Chinese history, what we know is that the status of women in China was very low. Men generally held very prestigious positions, while women were only lowly. In terms of the position of emperor, only one woman was able to hold this position in Chinese history. Hundreds or thousands of emperors were all men. Therefore, when Wu Zetian, a female generation, became emperor, it was also analyzed as a classic case by our descendants. Why was the Tang Dynasty replaced by a courtesan named Wu Zetian? Blame only Li Shimin for these three big mistakes.
Why was Wu Zetian able to become emperor? Later, after studying by many historians, a viewpoint was reached that if it were not for the three mistakes made by Li Shimin at that time, Wu Zetian would not have been able to wield great power. These three mistakes directly led to Wu Zetian gaining power. It laid the groundwork for later.
Firstly, Changsun Wuji was highly valued. Changsun Wuji had always had ulterior motives. When the rebellion of Princess Gaoyang came out, Li Shimin trusted him very much, which led to him eliminating all the people who were not on his side. In addition to Li Yuanjing, he also killed Princess Baling and his son-in-law, and even killed the famous general Xue Wanche at that time. This result enabled Wu Zetian to easily become emperor later on.
Secondly, kill King Wu Li Ke, who was a loyal minister at that time. Li Ke was brave and skilled in battle, but because Changsun Wuji wanted to help Li Zhi, he advised Li Shimin that Li Ke’s people could not be left behind and that he must be killed in order to stabilize the country for a hundred years. Therefore, out of trust in Changsun Wuji, Li Shimin executed Li Ke indiscriminately.
Thirdly, let go of Wu Zetian, which is also the most important point in my opinion. If Li Shimin had been able to sacrifice Wu Zetian with him at that time, such an ending would not have occurred. However, Li Shimin never expected that the Tang Dynasty, which he had worked hard to defend, would eventually be deceived by his pillow Wu Meiniang. As for Li Zhi, he was completely inferior to Li Shimin at that time, so he was replaced by Wu Zetian.
However, after becoming emperor, Wu Zetian still made great contributions to the Tang Dynasty, which is not a task in the history of our country. During her reign, she continued the rule of Zhenguan and created the legacy of Zhenguan. Therefore, Wu Zetian’s becoming emperor was also a contribution. It can be affirmed that Wu Zetian must have possessed great wisdom and strategy, which is why she was able to become the first female emperor in Chinese history.