Mongolia Deleted Its Surnames, Then Spent Decades Getting Them Back

Mongolia's communists took power in the early 1920s and set about destroying the country's family names.

This was not a reform or a simplification. The clan names went, and Mongolians were left with a single given name each on every official document for the next seventy years.

Why a government would do that

The ovog is a clan name, and in Mongolia it carried more weight than a European surname does. It tied a person to a specific lineage running back generations, and in some cases to the aristocracy.

That was the problem. Mongolia's hereditary nobility included the so-called golden lineage, families claiming descent from Genghis Khan, and clan identity supplied a structure of loyalty that predated the revolution and could compete with it. Erasing the names attacked the structure. A population that cannot name its clans has a harder time organising around them.

So the names were abolished, along with the aristocratic titles and the class system attached to them.

Seventy years of one name

Several full generations lived without a family name. Children were born, registered, educated, married and buried under a single given name, and nothing on any document connected them to their grandparents.

The practical consequences were the ones you would expect in a country with a limited stock of popular given names. Distinguishing one Bat-Erdene from another came down to context, patronymics used informally, or a workplace.

1997, and the problem nobody anticipated

Mongolia passed a law restoring surnames in 1997. Citizens were told to register an ovog.

Large numbers of them could not, because they had no idea what it was. Seventy years is long enough that the people who might have remembered were dead, and the records had been destroyed on purpose by a government that wanted exactly this outcome. Families went to elderly relatives, to monasteries, to whatever local documentation survived, trying to reconstruct a name that had been deliberately removed from the historical record.

The law was widely ignored at first. It only bit around 2000, when a new national identity card required the field to be filled in.

Everybody picked Genghis

Presented with a blank box and no ancestral information, a great many Mongolians wrote Borjigin, the clan name of Genghis Khan.

It was the obvious answer. Borjigin is the one clan name every Mongolian knows, it carries enormous prestige, and there was no register capable of contradicting the claim. The result is that a large share of the Mongolian population now shares a surname that a much smaller share can trace, which reproduces in miniature what happened in Korea when its class system collapsed and families reached for aristocratic names.

Others chose real clan names they had managed to recover, including Besud and Jalair. Some invented something suitable and moved on.

What the episode demonstrates

Surnames feel permanent because they usually outlive the people carrying them, which makes it easy to treat them as facts about a family rather than as records maintained by a state.

Mongolia is the clearest available demonstration that they are records. A government switched them off, and after seventy years a country had to reconstruct its own genealogy from memory and guesswork, with a good portion of the population settling on the same famous name because the real answer had been destroyed.