1. The first cryptocurrency was Bitcoin, created in 2009 by Satoshi Nakamoto (a pseudonym).

2. The term "cryptocurrency" was first used in 2011.

3. There are over 10,000 different cryptocurrencies, known as altcoins.

4. Cryptocurrencies use decentralized technology, meaning no government or institution controls them.

5. The total market capitalization of cryptocurrencies is over $2 trillion.

6. Cryptocurrency transactions are recorded on a public ledger called a blockchain.

7. Cryptocurrency is used for more than just digital money - it also has use cases in smart contracts, NFTs, and more.

8. The first Bitcoin transaction was for 10,000 BTC in exchange for two Papa John's pizzas.