My house's electrical wiring dates back to the Tang Dynasty.

"I know, does that mean people with the same surname can't marry?" Li Shimin asked, picking up a piece of roast duck and eating it.

"Not entirely," Li Mingbo replied.

Tell me about it.

"Your Majesty, the prohibition against marriage between people with the same surname in the Tang Dynasty refers to the father's surname, not the mother's. Medical research 1,300 years later shows that children born to couples who are direct blood relatives or collateral blood relatives within three generations have a higher probability of congenital disabilities than children born to non-collateral blood relatives. Furthermore, the probability of them suffering from genetic diseases is much higher in such marriages."

"The offspring born from such cases are more likely to have intellectual disabilities, physical weakness, low immunity, and an increased chance of developing limb deformities and incomplete organ development."

"Some familial chronic diseases, such as hypertension and diabetes, are more likely to occur in offspring when consanguineous marriages take place."

Li Mingbo spoke about the harms caused by consanguineous marriage.

Li Shimin nodded repeatedly, picked up a piece of roast suckling pig and ate it, then looked at Li Mingbo.

"Hongwen, what is a collateral relative within three generations?" Qin Shubao looked at Li Shimin, then at Li Mingbo, and asked.

Li Mingbo knew that Qin Shubao was asking on behalf of Li Shimin.

"Lineal relatives are those who gave birth to you or were born to you in all generations. This includes parents, grandparents, maternal grandparents, great-grandparents, and other elders; and children, grandchildren, maternal grandchildren, great-grandchildren, and other younger generations."

"Collective relatives within three generations include siblings: full or half-siblings who share the same father and mother, or the same father but different mothers or fathers."

Uncles, aunts, and cousins; maternal uncles, aunts, and nephews/nieces; cousins; and siblings.

Li Shimin stared intently at Li Mingbo for a long time before asking, "Hongwen, what did you mean by limb deformities and incomplete organ development?"

"It's easy to understand. Some children are born without an arm, or with two heads, or they're different from normal people."

Upon hearing Li Mingbo's words, the three of them stared at him intently.

"You make it sound so serious, but I've never seen it before?" Cheng Yaojin asked.

"Because this kind of thing can't be known by outsiders. If someone dies naturally at birth or is strangled to death, how can outsiders know?"

"Do people have two heads?" Cheng Yaojin still didn't believe it.

"Yes, there are two heads sharing one body. There's no internet here, otherwise I would go online and show you. Next time I go back, I'll download it to my phone and bring it back for you to see. There are all sorts of them."

Pictures don't lie. If you have internet at home, search for it on your phone right now and show it to them.

Unfortunately, all that's left is the electrical wire.

Could you please run a network cable from the modern area?

How could I have forgotten this?

I'll try it next time I go back.

Li Mingbo thought to himself.

It would be great if we could get a network cable over here.

In fact, the ancients also discovered this and took corresponding measures, such as stipulating that people with the same surname could not marry.

For example, if Li Shimin wanted to marry his daughter, Princess Nanping, to Li Mingbo, people with the same surname could not marry.

However, this is not comprehensive; it only stipulates the father's surname lineage, not the mother's surname lineage.

For example, Princess Changle, the eldest daughter of Li Shimin, married her cousin Changsun Chong.

Whether or not there was any deformity is not recorded in historical books. Even if there was, the Changsun family would not have let outsiders know, much less record it in historical books.

Li Shimin remained silent.

Li Mingbo didn't say anything more.

Anyway, he has already said it. Whether Li Shimin believes it or not, he is the emperor. Whether he adopts it or not is his business.

"Come, today is a joyous day, let's not talk about unpleasant things. Hongwen, I wish you a son soon," Cheng Yaojin said loudly, raising his wine cup.

Li Mingbo clinked glasses with Qin Shubao and Cheng Yaojin, and downed their drinks in one gulp.

"This roast suckling pig is delicious, just as delicious as roast duck. Hongwen, do you have any more? I'll take some with me later," Cheng Yaojin said while eating the roast suckling pig.

Although the roast suckling pig didn't taste as authentic as it does today, it was still seasoned with plenty of salt, star anise, and other spices, making it savory and fragrant with a crispy skin. In Qin Cheng's eyes, it was already a heavenly delicacy.

"I made extra roast duck and roast suckling pig, so we'll have some when we leave."

Thinking about the roast duck issue, the raw materials need to be supplied continuously when the business opens. Fortunately, Cheng Yaojin and Qin Shubao are here now, so Li Mingbo shared his idea of ​​creating an artificial incubator.

Upon hearing this, the two realized that ducklings could be hatched without a mother duck.

"Theoretically, it's possible. As long as we maintain a constant temperature, humidity, and ventilation of 40 degrees Celsius, it will be successful. I'll write down the specific steps later. However, there's one thing that General Cheng needs to find."

These things could have been done by purchasing modern equipment, but if they could be made by hand, there would be no need for industrialization.

Those advanced industrializations are of no help to the Tang Dynasty at present.

Charcoal can be used as a heating material, but it is not durable and is not as long-lasting as coal.

Li Mingbo has made up his mind: he'll make honeycomb briquettes so they can be used to build heated kang beds in the winter.

It's best to let Cheng Yaojin find the coal.

Li Mingbo then explained the important role of coal to everyone. Upon hearing this, Li Shimin immediately ordered Cheng Yaojin to go find it, and to do so quickly, the next day.

"Hongwen, you should come too. Get it done quickly, and make sure it's finished before winter. Every winter, many people freeze to death. If it's really made, it will be cheaper and longer-lasting than charcoal, and ordinary people will be able to use it."

"Okay, and there's also a modern type of heated kang bed, which will keep the room warm and cozy."

The banquet ended as evening approached and curfew was about to begin.

Li Mingbo gave each family a roast suckling pig and two roast ducks.

Li Mingbo had drunk quite a bit today and arrived at the bridal chamber in a drunken state.

Inside the room were two maids who had accompanied the bride, identical twins, tall and slender with snow-white skin, also identical beauties.

This is the maidservant that the Empress gave to Lotus as part of her dowry.

"Ah Lang, you're drunk." Lianhua came over and helped Li Mingbo sit down on a stool at the table.

"Make me a cup of tea; I've had a bit too much to drink today," Li Mingbo said to Lianhua.

Turning his head to look at the two maids who had accompanied him to the bed, Li Mingbo rubbed his eyes, wondering if he was seeing things.

"Which one of you is the older sister, and which one is the younger sister?"

"I am the older sister, Zhao Jing."

"I am your younger sister, Zhao Yu."

The two spoke softly and walked to the table, but they didn't know how to make tea.

This is a modern tea-brewing method, unlike the tea-boiling method used in the Tang Dynasty.

Lotus was a kind mistress who told them to watch and learn from the sidelines.

"You two look so alike, I have face blindness and can't tell you apart. From now on, you shouldn't wear the same clothes, or I'll call you by the wrong name," Li Mingbo said with a smile.

This damned feudal society.

Such a beautiful woman, given away so easily, is there no justice, no law?

Looking into her husband's eyes, Lianhua chuckled and said, "Zhao Jing and Zhao Yu are maids given to you by the Empress. When I am not feeling well, they can serve you in my place. You must cherish these two sisters."

I remember reading in novels that the maids who accompanied the bride were supposed to serve the groom in her place when the bride was unavailable.

On her wedding day, the bride is pushing her husband onto someone else. What can I say... this damned feudal society.

Li Mingbo still felt somewhat ashamed and didn't respond.

Lotus continued, "I'm not feeling well today, so let Zhao Jing and Zhao Yu serve you tonight."