1. educational differences: in general families, the first-born children and ordinary children have the same educational opportunities on the surface, but there are great differences in teacher conditions, living conditions and reading environment.

2. Property distribution: Before the Han Dynasty, concubines could hardly get any property. After the Han Dynasty, it was generally believed that the philosophers were equally divided. However, this division itself has a premise. It is necessary to remove the official residence, sacrificial fields and royal gifts related to officials, titles and official positions (such as the Royal Guards in the Ming Dynasty and the hereditary posts of the Eight Banners in the Qing Dynasty) (enjoyed by the eldest son), and then remove the family property and public land (managed by the eldest son), and the remaining public property will be divided equally. Hehe, how much is left in an ordinary family after removing these? Besides, as a housekeeper, Moody can divide the remaining public property in 10,000 ways, such as buying public land. Anyway, it is under the guardianship of the eldest son. Most importantly, the first mother can force the illegitimate child to give up his inheritance. For example, this illegitimate child was admitted to Tongsheng at the age of fifteen or sixteen. The first mother announced that the illegitimate child could get a sum of money, arranged the marriage at home and distributed it to the healthy mother. This bastard has to agree even if he bites his teeth. Well, that bastard got 180 mu of land. If he marries the daughter of a small landlord and a rich farmer, he has to run for his family's livelihood. This age is actually a good time for learning and progress. It will be completely straightened out after three to five years, and it will be like this all my life.

3, resource tilt: the eldest son and the second son are treated differently after they become officials. No matter how high the starting point of Di Zi is, a family's resources are limited. Obviously, most contacts and relationships will give priority to the eldest son, illegitimate children are difficult to get promoted, and the chances of meritorious service are even slim.

4. Women's treatment: For ordinary families, ordinary women had no chance to get married alone before Wei and Jin Dynasties. They usually marry their first sisters, first cousins, first aunts and become prostitutes. In fact, it is to help the family control the man's blood. After Wei and Jin Dynasties, ordinary women could get married alone because they could get married downwards and have the same educational opportunities. But as an ordinary woman, whether she can get the support of family resources in the future is obviously not as good as her first daughter. Of course, the Qing dynasty was different. In the flagship store, all women must take part in the conscription. After entering the palace, the official position is meaningless to the royal family, so ordinary women also have better treatment in Manchu families.

The extended information is that dí chū, di, the wife is the first, and the son born by the wife is the first and second, which means authenticity. In ancient times, it was usually the heir (that is, the son) who inherited the throne, because there was a rule in ancient times that he was in office for a long time. Some dynasties, if not the oldest, are still big if they are the first.

Ordinary: ordinary, collateral, the son of a concubine, called ordinary son, ordinary. Not born for the first house. The office is big, ordinary is small. Generally speaking, illegitimate children don't care about inheritance rights, but there is a saying that they can be princes or princes.

Reference source Baidu Encyclopedia