Could you please clarify what "XLM" refers to in this context? If you're referring to Stellar Lumens, the cryptocurrency, then it's important to note that cryptocurrencies don't have an age in the traditional sense. They are digital assets that exist on a blockchain, and their "existence" is determined by the launch date of the blockchain or protocol they are associated with.
However, if you're asking about the age of the Stellar network, Stellar Lumens (XLM) was launched in 2014, making it one of the earlier cryptocurrencies in the market. Since then, it has grown significantly and is now widely used for cross-border payments and other financial transactions.
If you're looking for more detailed information about Stellar Lumens or its history, I would recommend checking out its official website or reading relevant news and articles about the project.