Shen Wansan borrowed 1 copper coin from Zhu Yuanzhang. Why should he pay back 500 million after 30 days?

This is the time when Zhu Yuanzhang paid attention to Shen Wansan because the state treasury had no money. At the beginning, it can be said that half of the walls of Nanjing were built by Shen Wansan, but despite Shen Wansan's great contribution, Zhu Yuanzhang was sent to Yunnan to banish troops. Let's start with the story of Shen Wansan returning 500 million copper coins to Zhu Yuanzhang.

Shen Wansan was a rich man before Zhu Yuanzhang ascended the throne, but there were many power struggles at that time, so there was no way to curry favor with these rich men. At first, Zhu Yuanzhang's attitude towards Shen Wansan was very good, but when Zhu Yuanzhang established the Ming Dynasty, he naturally focused on Shen Wansan, and Zhu Yuanzhang came to the bank in Shen Wansan to deposit money.

But Zhu Yuanzhang saved a copper coin, but Zhu Yuanzhang was the face of the emperor. But Zhu Yuanzhang's next words made Shen Wansan vomit blood. He asked Shen Wansan to pay twice the interest of the previous day and wait until a month later to withdraw money. Such interest can be said to be much darker than usury. Shen Wansan's banks, which have been operating for so many years, must know that there is something fishy going on here, and Shen Wansan began to look embarrassed. But then Zhu Yuanzhang began to boast that the banks in Shen Wansan kept their promises and didn't cheat anyone. Shen Wansan understood that Zhu Yuanzhang was determined to eat himself, and now his face was full of smiles. Maybe his head will be gone tomorrow, so Shen Wansan agreed to the interest.

As a result, Shen Wansan carefully paid back Zhu Yuanzhang's 500 million yuan a month later, but Zhu Yuanzhang certainly didn't dare to owe money, so Shen Wansan can be said to have returned all his property to Zhu Yuanzhang. It wasn't over until Zhu Yuanzhang got the money, but Shen Wansan must have been angry, so he gave the copper money that Zhu Yuanzhang gave him to a beggar to vent his anger.