1. First Crypto: Bitcoin was the first decentralized cryptocurrency, launched in 2009.

2. Lost Coins: Estimated 20% of all Bitcoin is lost forever due to forgotten passwords.

3. Rarest Coin: Only 21 million Bitcoin will ever exist.

4. Fastest Transaction: Dogecoin has the fastest transaction time, at just 1 minute.

5. Largest Supply: Ethereum has the largest maximum supply, at 100 billion.

6. Most Expensive: Bitcoin reached an all-time high of $64,804 in 2021.

7. First Altcoin: Namecoin was the first altcoin, launched in 2011.

8. Crypto Whale: The largest Bitcoin wallet holds over 250,000 BTC.

9. Mining Difficulty: Bitcoin mining difficulty adjusts every 2016 blocks.

10. Quantum Resistance: Quantum computers can potentially break some crypto algorithms