People acting like Mongolia is an old man who doesn't know how to use a phone when he's around 1100 years old at most gives me brain rot anyways here's something I wrote about his origins + actual age that I wrote ages ago that puts things into perspective:
Scholars consider Mongols to be descendants of the Xiongnu and the Xianbei, the original term for Mongolic groups that gave rise to modern-day Mongolians being called the "Mengwushiwei" by the Chinese. Shiwei are descendants of the Xianbei. It has been said that the intermixing between the Xiongnu and Xianbei was the genesis of the Mongolic people.
This is because the Yuwen, being descendants of the Southern Xiongnu , assimilated with the Xianbei in 89 CE (when the Xiongnu were heavily weakened but not yet defeated), thus creating the Shiwei Xianbei branch. The Shiwei Xianbei branch then went on to become 20 Shiwei clans, one of which was called the "Mengwushiwei" (this tribe specifically is considered the direct ancestor to Mongolians). All these tribes ultimately descended from the Xianbei assimilated Yuwen.
The group linked to the Mongols of Genghis Khan were originally labelled "Mengwushiwei" by the Chinese in the 10th century book "The Ancient book of Tang", so Mongolia has relations to the previous Xiongnu through the Xianbei assimilated Yuwen (Southern Xiongnu).
More on the Shiwei people: The Shiwei's relation to the Khitans and the records of the Shiwei during the Northern Wei period/"Tuoba dynasty" (Northern China) 386–535. The Tuoba dynasty was founded by the Tuoba clan of the Xianbei.
The Book of Wei (written 551-554 and was a historical text written by Wei Shou which aimed at recording the details of the Northern Wei period of 386-536) suggests the Shiwei and Khitan shared the same language, the Book of Sui says they were of the same kind of people, and both the New Book of Tang and Old Book of Tang claim the Shiwei were a collateral branch of the Khitan. Historian Wan Guowei described the Shiwei as a Khitan tribe, indicating some ethnic similarities between them. The Khitan were Xianbei tribes who became independent after 234 CE after the Xianbei state dissolved and from the 4th century, lived in the areas which is now modern day Mongolia, Russia (far East) and Northern China.
Both Khitans and Shiwei spoke a (proto?)Mongolic language. Both Khitan and Shiwei (also Tuoba)were Xianbei tribes and and so their emergence could have very well been around the same time period , perhaps early Shiwei tribes emerging a little later after 234 CE (after the Khitan first emerged and a little before the Xiongnu were finally defeated) considering how it was speculated how the Shiwei were a branch off of the Khitan or were even the same as the Khitan. The latter is not true but it goes to show that they probably emerged during similar times.
Also as previously mentioned, the Khitans lived in the areas of Mongolia, China and Russia in the 4th century/300 CE before their claim to fame in the 10th century when they founded the Liao dynasty.
Further, in the year 443, the Wuluohun, a tribe of Shiwei (this is not Mongolia or a direct ancestor of Mongolia, but a relative of his related to the Mengwushiwei who is his direct ancestor, as the Wuluohun Shiwei were one of the 20 other Shiwei tribes along with the Mengwushiwei), presented evidence of a Xianbei ancestral cave called the Gaxian cave in northern Inner Mongolia to the Tuoba Xianbei court. This discovery supports the belief that the Shiwei preserved early Xianbei traditions better than the Tuoba did and justifies their Xianbei origins. It also further justifies my belief that the Shiwei clans/at least some of the 20 Shiwei clans being born around 300 CE because it's not like they turned up out of nowhere in 443 CE.
The Mengwushiwei (the Mongolic tribe underneath the Shiwei umbrella who are ancestors to Khamag Mongols and therefore Mongolia himself) originally occupied the Western area of the Shiwei range, but eventually migrated to the Steppe and settled along the river Erguna. They occupied this space for a while before migrating again in the 7th century, and settling in what is now Mongolia. Coincidentally, this is also around the time the Tang dynasty started, which probably explains Mengwushiwei being recorded in a historical book about the Tang dynasty). By the 12th century, they were living around the Onon, Kerulen and Tola rivers, which were East to the Khentii mountains.
Understanding the origins and movements of these groups (especially the Mengwushiwei) is important as they are ancestors to the Khamag Mongols. The Khamag Mongols consisted of two Mongol groups, the Nirun and Darlekins. Within these two groups, there were different clans. The Borjigin clan, the clan that Genghis Khan came from, was part of the Nirun group. This was the clan Mongolia originally represented. Khamag > Nirun > Borigin. The Borjigin Clan was formally founded in the early 10th century.
His earliest birth date is the early 10th century. He's baba pls stop making him elderly