Why can the ancient representatives be married, but the Tang relatives cannot be married

It should be possible to get married.

I often see the plot of my cousin marrying my cousin in various film and television dramas, and from the perspective of modern medicine and law, close relatives within three generations are not allowed to marry. The reasons for this are more or less understood, such as the birth of children will have various problems, so in ancient times, why did it feel that there were not many mentally retarded children? Of course, in ancient times, marriage between close relatives was limited to cousins, and marriage between cousins was strictly forbidden.

The best thing to do in the marriage of close relatives is Empress Lu, who let her son marry her granddaughter Zhang Yan. So why are there not many mentally retarded children who are married by close relatives in ancient times? There are three main reasons for this

One is that the ancients usually gave birth more, and the chance decreased. Generally, the relatives are between cousins, and the genetic similarity is not large, so the children with considerable genetic defects are only about 1 4 appearance, and the restrictions of ancient medical conditions make it difficult for the children with problems to live to adulthood.

The second is that in ancient times, it was not monogamy, but polygamy. In this case, the kinship relationship is more complicated. The so-called cousins may be a collateral extension of the big family, so the children between the aunts and cousins are married, and I don't know how many layers of blood relations are separated.

Yes, in ancient times, it was important to be close to each other, so cousins married a lot.

Hope, thank you.

In ancient times, there were two main cases of consanguineous marriage:

One is that some families feel that they have a noble bloodline, so they adopt the method of marriage between close relatives to maintain the purity of blood, the most famous example of which is the Egyptian royal family. Ancient Egypt.

It is believed that the blind ant-nucleus woman maintains the bloodline of the family, and the bloodline of the royal family is very noble, and only the marriage of close relatives can ensure the purity of the royal bloodline, so the candidate for the throne can only inherit the throne by marrying the king's daughter. This consanguineous marriage is even related to the legitimacy of the throne. Therefore, there were many marriages between brothers and sisters, fathers and daughters, mills and even grandchildren in ancient Egypt.

Similarly, there is the Japanese Imperial Family.

In order to protect the purity of the bloodline, many are also close relatives to marry.

The second is that the ancient interpersonal circle was small, coupled with the thinking of intimacy and intimacy, there would be consanguineous marriages. This situation was more common in ancient China. At that time, because of feudal etiquette, women didn't go out much, and they relied on matchmakers to find their in-laws.

In this kind of situation, the cousin who is relatively familiar with it is naturally more reliable, and in this way, the mother-in-law is also her own relative, and she is not afraid that she will be bullied if she meets a person with a bad temper.

In ancient China, great importance was attached to the issue of bloodline, and it was difficult to contact other members of the opposite sex due to inconvenient transportation, so close relatives were very common in ancient times. However, due to the fact that the offspring of consanguineous marriage will have many health problems, our country formulated regulations prohibiting consanguineous marriage shortly after the founding of the People's Republic of China.

First, in ancient times, close relatives were allowed to marry, on the one hand, because ancient people attached great importance to the issue of blood, thinking that close relatives were happy to marry, on the other hand, because in ancient times, the transportation was inconvenient, and men and women had little contact with each other, so it was a very common phenomenon in ancient times.

However, due to the fact that the probability of health problems in the offspring of consanguineous marriage is higher than that of ordinary children, China formulated a regulation on "prohibiting consanguineous marriage" shortly after the founding of the People's Republic of China.

2. The reason why there are few problems with the descendants of close relatives in ancient times 1. In ancient China, there was a system of "blind reed polygamy", even if it was a marriage between close relatives, the possibility of the two having the same blood relationship was very rare, and many cousins were just name relationships.

2. Ancient people were more superstitious and paid attention to face, and children with health problems would be taken care of as soon as possible, and they would not let others know, and there would be no record.

3. For the real direct blood relationship, the ancients would deliberately avoid it.

Because in ancient times, the class consciousness in society was very strong, and the attention was paid to the right family, so many large families were worthy of their children as relatives, which led to the marriage of close relatives becoming the norm.

Like the alliance of close relatives of the ancient royal family, it is also a very common phenomenon, so let alone the common people.

The transportation is not convenient, and the correspondence is not developed, so it is difficult to go far and meet new people.

In the old days, the marriage pants shouted that Sendo relied on the words of the matchmaker, and the man asked the matchmaker to propose to the woman first, which was called "good fortune". After the woman agreed, she handed over the red post with the eight characters of her daughter's birthday, that is, "Geng post", called "out of the post", commonly known as the "eight characters" of the infiltration wheel. After the man obtains the Geng post, he presses under the incense burner in front of the ancestral tablet for three days, called "pressing Hu Mu Geng", and then asks the fortune teller to calculate whether the eight characters of the male and female birthdays are mutually restrictive, which is called "marriage".

If the five elements clash with each other, return the woman's "Geng post" and apologize with some gifts. The new society implements the autonomy of marriage, but in many rural areas, it is still popular to talk about marriage. Most of the young men and women in urban areas are free to fall in love, and some of them have been introduced to each other and have obtained the consent of the family to determine the marriage relationship, which is called "finding a partner".