As of today, the 5 most well-known stablecoins have savings of $163 billion. The first stablecoin BIT usd appeared in 2014 and "died" in 2018. They are pegged to fiat dollars, yen, euros, securities, as well as backed by precious metals, oil, rubber, and so on. There are also decentralized stablecoins with cryptocurrency collateral such as the DAI stablecoin from MakerDAO. Stablecoins are used as a savings instrument, for transferring funds, and as a gateway to the crypto world. .....And so that it is always open for you.