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Cryptocurrencies began with the idea of ​​a decentralized financial system based on **encryption**. The first digital currency, **Bitcoin**, appeared in 2008 by an anonymous person named **Satoshi Nakamoto**. Bitcoin used **Blockchain** technology to record transactions securely and transparently.

As Bitcoin grew in popularity, many other digital currencies emerged, including:

- **Ethereum**: Known for offering smart contracts.

- **Litecoin**: Similar to Bitcoin but features faster transactions.

- **Ripple (XRP)**: Focuses on facilitating international exchanges.

- **Dogecoin**: Started as a satirical currency but gained widespread popularity.

- **Bitcoin Cash**: A branch of Bitcoin designed to process transactions faster.

- **Cardano**: Focuses on sustainability, security, and decentralization.

- **Polkadot**: Aims to connect different blockchains together.

- **Binance Coin**: Used on the Binance cryptocurrency exchange.

- **USDT (Tether)** and **USDC**: Stablecoins pegged to the value of the US dollar.

Cryptocurrencies continue to evolve, and experience fluctuations in their value, with the emergence of **stablecoins** and **central bank-backed digital currencies (CBDC)**.