1. The first commercial bitcoin transaction was for pizza

2. There are more than 9,500 cryptocurrencies in existence

3. The total amount of bitcoins is limited

4. One man wants to excavate a landfill to get his digital wallet back

5. Some cryptos, like Ethereum, have more uses than as a coin

6. Ethereum fees are referred to as gas

7. CryptoKitties is one of the first blockchain games

8. The most expensive CryptoKitty sold for 600 ETH

9. NFTs aren’t currencies

10. The creator (or creators) of Bitcoin remain anonymous