Zhu Yuanzhang frowned slightly, he didn't know much about the Qin Dynasty's Hui Shi. But Zhang Heng of the Eastern Han Dynasty still heard of it, looked at Lan Bin, and said, "Even if it was said by the ancients, few people have recognized it for thousands of years. You can't talk nonsense, and you can't teach us good grandchildren!"

"Your Majesty, the minister is not talking nonsense, but there is evidence to prove that we are living on the same ball!" Lan Bin thought for a while.

Zhu Yuanzhang raised his eyebrows and said in surprise: "What evidence?"

"In the former Yuan, there was a man from the Western Regions who presented Kublai Khan with seven images of the Western Regions, including a globe. Your Majesty, order someone to investigate, and you will know!"

Lan Bin said, "In addition, the emperor, you can also let people observe that when the ship on the sea comes from the front, it is generally the mast of the sail that is seen first, and then the hull."

"Conversely, if the ground is flat, the hull must be seen first, not the mast."

said, afraid that Zhu Yuanzhang would not believe it, and added: "By the way, there is a fleet called Magellan in Western countries, which sails in one direction, and finally sails around the world and returns to the starting point!"

In other words, if you don't believe me so much, then you can organize a fleet and sail around the world, and you will definitely be able to go from the beginning to the beginning.

Zhu Yuanzhang was poked into the blind spot of knowledge again, and he didn't know that the people of the Western Regions had presented a picture to Kublai Khan, nor did he know that the sea fleet had proved that the earth was round.

But he saw that Lan Bin swore an oath, and out of trust in Lan Bin, he reluctantly believed Lan Bin's words.

After a moment of silence, he looked at Lan Bin again, puzzled: "Lan Bin boy, you usually don't learn and don't know how to do it, and you haven't read a few books, where did you know all this, including this globe?"

"Back to the emperor, the minister once read a foreign businessman's travelogue of the former yuan. The travelogue not only records the customs and customs of each country in detail, but also records the mineral resources and other information of each country."

Lan Bin had already thought of his words when he decided to present the globe through Zhu Xiongying's hand, and said unhurriedly: "Take the Sakura Country recorded in the travelogue as an example, it is said that there is a place called Iwami Country in the Sakura Country, and there is a mountain called Iwami Silver Mountain in it."

"The whole mountain is silver."

Travelogues or something, of course, he made it up.

In other words, it was he who borrowed the skin of Marco Polo's travels, which was controversial in later generations, half-truths and half-truths.

However, the Iwami Silver Mountain in the cherry blossom country is absolutely true.

In particular, the current cherry blossom country is in the northern and southern dynasties, and it is chaotic, and Iwami Ginzan has a large amount of silver reserves and is easy to mine. But in the end, it's still underground.

No one has been spotted yet.

The reason why Lan Bin mentioned the stone and saw the silver mountain is, first, that the cherry blossom country is close to Daming, and there are many gold and silver mines in China. If Zhu Yuanzhang is thoughtful, there is a way to verify it.

The second is to tempt Zhu Yuanzhang with Li and urge Zhu Yuanzhang to gradually change the maritime ban policy.

After all, Zhu Yuanzhang formulated the maritime ban policy, in addition to the coastal areas where Zhang Shicheng and other remnants of the evil caused chaos and restored people's livelihood, the main reason was that Zhu Yuanzhang and the imperial court officials regarded themselves as the superior countries of the Celestial Empire and did not know enough about overseas countries.

I feel that except for Daming, the rest of the places are wild places.

They didn't know that what they thought was a wild land actually had too many resources that the Ming Dynasty lacked, such as gold, silver, copper and other minerals.

Sure enough, Zhu Yuanzhang was still thinking about the foreign businessman's travelogue in Lan Bin's mouth, but when he heard that the Sakura Country had a silver mountain, and the entire mountain was silver.

In an instant, he forgot all the thoughts in his heart, leaving only the two words Yinshan, and couldn't wait to say, "Really?"

"The travelogue is very detailed, and it is very likely that the minister thinks it is true!"

Lan Bin saw Zhu Yuanzhang take the bait, the corners of his mouth hooked, and immediately changed to a solemn appearance: "Besides, Daming is not far from the Cherry Blossom Country, the emperor can send someone to the Cherry Blossom Country to investigate one or two, and you will know!"

This is true, the cherry blossom country is so close to the Ming Dynasty, and there are envoys to the Ming Dynasty to worship, whether there is a stone to see the silver mountain, send someone to inquire one or two, you will know!

However, the foreign businessman's travel book in Lan Bin's mouth is a good thing, and it even records the affairs of the Cherry Blossom Country Silver Mountain.

Zhu Yuanzhang was interested in the foreign businessman's travelogue in Lan Bin's mouth for a while, and couldn't help but say, "Lan Bin boy, where is the foreign businessman's travelogue you are talking about? Show it to us!"

"What, the foreign businessman's travelogue is the same as the outline of this dynasty, and it was thrown away by the minister!" Lan Bin acted as a problem.