The following are active cryptocurrencies: Tether, Bitcoin, Ethereum, USD Coin, Binance, TrueUSD, and XRP. Because I am so curious about engaging with crypto, which is why this day, no work in my country for it is a holiday, I researched the different active currencies. Does it mean to say, that there are currencies that are inactive? Why is that so? All these mentioned are so famous in the crypto world. But I only knew Bitcoin, Ethereum, and Binance. I do not know about USD coin, True USD, and XRP. There are many of you here crypto experts, I believe you already knew about these active cryptos.