After five years of teaching support, Daming became an empire on which the sun never sets.

On the open space in front of Yin Yang Courtyard, Qin Yu was cleaning with a broom in his hand.

I heard that the teacher inside was teaching the students Yin-Yang Bagua, Nine Palaces, Hetu Luoshu and so on.The teacher on the podium was teaching arithmetic by pinching fingers, and the pads of the three thumbs represented the number of spells, three eight one, two four six, seven nine five.Each number represents different directions and different things, and then predicts good or bad luck through the finger pinching algorithm.

It can be said that the teaching content of Yin Yang Academy is all about China's mysterious metaphysics culture.

For these ancient metaphysics cultures, he neither fully believed nor completely disbelieved.

However, it is obviously not feasible to use these things to establish the country and Anbang.To strengthen the country and rejuvenate the country depends on natural science.

But one cannot completely negate metaphysics, thinking that it is completely dross and useless.

Therefore, in Qin Yu's view, if he wanted to make the civilization of the Ming Dynasty prosperous and strong, he had to mainly develop mathematics, physics and chemistry.As for the ancient metaphysical culture, as an auxiliary, secondary development.

What if it is confirmed in the future that metaphysics is really the end of science?
At that time, at least the Ming Dynasty did not completely abandon it, and it was still developing indecently there.It's just not regarded as the main development, let the fans study it.

It is better for the general public to study science.

Therefore, he intends to suggest in the future that Emperor Zhu should study in the Jixia Academy, plus the Academy of Natural Sciences.

The Academy of Sciences is the main body, and other schools of thought are auxiliary departments.

"This person's state is so ethereal and detached!" At this moment, Liu Bowen, the dean of the Yin Yang Academy, happened to pass by. After seeing Qin Yu, he couldn't help being shocked:

"He stood there sweeping the floor, but he didn't feel like a scavenger at all."

"On the contrary, it seems that everything in the world is in his chest, and he can look down on the whole world from above."

"This kind of temperament, most people don't have it."

"Who is he? Why haven't I met him before? Yin Yang College doesn't have him as a student. If there was, I'm afraid I would have discovered it long ago." Liu Bowen asked a student next to him.

"Isn't he just a sweeper?" The student next to him replied casually, "I heard that it was recommended by senior brother Lin Shuo, but he didn't get the chance to be assessed. He must be a distant relative of Lin Shuo."

"Anyone like him who wants to get into Jixia Academy by virtue of connections should have no real skills." Another student said, "He is proud enough to sweep the floor of Jixia Academy."

Just at this time, a fallen leaf fell at Liu Bowen's feet, Liu Bowen picked it up and learned a lesson in divination.After shaking his head, he didn't get any results.

He didn't take this matter to heart and turned to leave.

……

"Your Majesty, Tianfang's envoys have been staying in Honglu Temple for ten days, and request to meet His Majesty as soon as possible." In the imperial study, Yang Xian, the Prime Minister of Zhongshu Province, entered the door and reported.

"We happen to be free tomorrow, so let's call them tomorrow at the Wenhua Palace." Zhu Yuanzhang said.

Zhu Yuanzhang had known about the envoys of Tianfang Kingdom coming to Beijing for a long time. As soon as the envoys arrived in Yingtian, Zhongshu Sheng reported the matter to the emperor. It can be said that the report was very timely.

In history, Hu Weiyong was caught by Zhu Yuanzhang because the envoy of Champa Kingdom came to Yingtian Mansion, and Hu Weiyong did not report it in time, let alone deal with it in time.

As a result, the envoys of the Champa Kingdom wandered in Yingtian Mansion for more than a month.

Lost country.

Foreign envoys must be received by the emperor in person, but he did not report to the emperor, which shows how powerful the prime minister was at that time.Prime Minister Zhongshu Sheng was the first to know about many major events.

Zhu Yuanzhang was furious when he knew about it, so he took the opportunity to take down Hu Weiyong, and asked him to count the crimes and punish him.

I am afraid that only Hu Weiyong, who likes to show off his skills crazily, dares to hide the matter of foreign envoys coming to Beijing from the emperor.Yang Xian definitely did not dare to do this.

Although he knew the news early, Zhu Yuanzhang had no plans to meet the heavenly envoys.

Because he heard that this group of people uttered nonsense after they came to Yingtian Mansion, and their words were very rude, giving people a feeling of arrogance.So ignorant of etiquette, they let them hang out for ten days.

You, an envoy from a small country, arrived in Daming, how dare you have your nostrils turned upside down?

"Observe the order." Yang Xian said, "I will immediately notify the Ministry of Rites and ask them to prepare the etiquette for the reception. Presumably, the arrogance of the envoys from Heaven will not be so arrogant this time."

"Yang Xian, which country is this envoy from?" Zhu Yuanzhang asked.Tianfang generally refers to the Arab region at that time, not a specific dynasty.

This region is at war all year round, has many small countries, and regime changes frequently.Because of the underdeveloped transportation and information at that time, many people in Ming Dynasty felt that Tianfang was a country.

"From what they said, it seems to be from the country of Murga." Yang Xian reported.

"En." Zhu Yuanzhang nodded noncommittally. He didn't care about the small backward country in the area of ​​Tianfang, and it was far away from Ming Dynasty.

In the area of ​​Tianfang, in his impression, there is only one thing that he remembers clearly.

That was a man named Mahaji, who had traveled far to the sky and was proficient in the language there.Ma Ha has only one son named Ma He, who is now working as a young eunuch in Yan Wangfu.

Because Maha is only proficient in the local language, he followed Daming's expedition fleet and went on an ocean expedition.

And the direction of the fleet's exploration is Tianfang.

It is definitely more convenient and faster to travel by sea than by land. It is estimated that it will take several years to travel from land to sky.

But by sea, it will take a few months at most.

"Could it be that the arrival of the heavenly envoys has something to do with Daming's expedition fleet?" Zhu Yuanzhang thought to himself, "There is neither love nor hatred for no reason in the world."

"After the envoys came to Daming, they uttered nonsense and spoke rudely. They must be dissatisfied with the behavior of Daming's ocean-going fleet after they arrived there."

"Yang Xian, how far is Persia from the sky?" Zhu Yuanzhang asked again.

Peasant uprisings in the feudal era basically relied on religion, using omnipotent gods to give soldiers the courage to kill the enemy, and collecting food and salaries from the people in the name of gods, so that desperate people can see in the dark A glimmer of light.

The Yellow Turban Uprising, the Huangchao Uprising, the Chen Sheng Wu Guang Uprising...all of them were used.Zhu Yuanzhang used Mingjiao, and Mingjiao originated in Persia, so he knew Persia.

He took advantage of Mingjiao, but never went to Persia.

The Central Plains has transformed Mingjiao into its own.

I vaguely remember that Persia is probably in the Tianfang area.

"Back to the emperor, please forgive me for my short-sightedness. I don't know the directions of Tianfang and Persia." Yang Xian said awkwardly, "If the emperor wants to know, you can look at the world map drawn by the master."

"Look." Zhu Yuanzhang said, "Only Yilang is marked on it, but there is a Persian Gulf next to it."

The next day, Wenhua Hall.

A group of envoys appeared above the hall, the crowd wore white robes and hoods.