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1. Beginner Course

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  1. 1. What are these cryptocurrencies?
  2. 2. Bitcoin - the story of a technological revolution
  3. 3. Satoshi Nakamoto, who is the creator of Bitcoin?
  4. 4. Vitaly Buterin – the creator of Ethereum
  5. 5. What is Blockchain, and how does it work?
  6. 6. What is an NFT token?
  7. 7. What is money?
  8. 8. Cryptocurrencies vs fiat money, which will win?
  9. 9. What is DeFi (Decentralized Finance)?
  10. 10. DeFi: opportunities, advantages and disadvantages of decentralized finance
  11. 11. What is an altcoin?
  12. 12. Stablecoins - What are they?
  13. 13. Cryptocurrency wallet - what is it?
  14. 14. Why do we talk about bull and bear markets?
  15. 15. Security in the crypto market - what rules are worth following?
  16. 16. What is the seed phrase in cryptocurrencies?
  17. 17. Dogecoin and memecoin - what are they?
  18. 18. What is a Ponzi scheme?
  19. 19. What is Ethereum? 
  20. 20. What is a soft and hard fork?
  21. 21. Blockchain - examples of use
  22. 22. Is blockchain safe?
  23. 23. Smart Contracts - what are they?
  24. 24. Liquidity pools in the cryptocurrency market
  25. 25. What is cryptocurrency mining?
  26. 26. What is the mining difficulty?
  27. 27. Inflation and its effects on financial markets
  28. 28. What is compound interest, and how does it work?
  29. 29. Cryptocurrency wallet diversification
  30. 30. Blockchain and NFT games - how to make money on them?
  31. 31. Decentralized Apps – what are they?
  32. 32. What is Proof of Work (PoW) and what is Proof of Stake (PoS)?
  33. 33. What is the Proof of Authority (PoA) consensus mechanism?
  34. 34. What is Proof of Burn (PoB)?
  35. 35. What is CBDC - central bank digital money?
  36. 36. What is Cryptocurrency Airdrop all about?
  37. 37. What are the types of blockchain networks?
  38. 38. Key differences between ICO, IEO and STO
  39. 39. What is IoT - the Internet of Things?
  40. 40. What is the difference between Circulating Supply and Total Supply?
  41. 41. Everything you need to know about gas fees in Ethereum!
  42. 42. The most important cryptocurrency acronyms/slang you need to know!
  43. 43. Halving Bitcoin - what is it, and how does it affect the price?
  44. 44. What is the Fear and Greed index for cryptocurrencies?
  45. 45. APR versus APY: what is the difference?
  46. 46. Snapshot from the world of cryptocurrencies - what is it?
  47. 47. Know your customer (KYC) and Anti-money laundering (AML) what are they in the cryptocurrency industry?
  48. 48. What is a whitepaper? What is its purpose, and how do you write it?
  49. 49. How do you transfer cryptocurrencies?
  50. 50. What is EURT? How does it work?
  51. 51. What is Regenerative Finance (ReFi)?
  52. 52. Bitcoin Pizza Day
  53. 53. What Is Stagflation and Why Does It Have a Negative Impact on the Market?
  54. 54. What are decentralized DAO organizations, and how do they work? What are DAO tokens?
  55. 55. CyberPunks - the story of the most popular NFT collection in the crypto industry!
  56. 56. AI blockchain - a new look into the future?
  57. 57. The Bored Ape Yacht Club (BAYC) - the story of the popular NFT collection!
  58. 58. Who is Changpeng Zhao, CEO of Binance?
  59. 59. What is blockchain network congestion, and how does it work?
  60. 60. Azuki NFT collection guide: everything you need to know about it!
  61. 61. Who Is Craig Wright, the Alleged Creator of Bitcoin?
  62. 62. What Is Bitcoin (BTC.D) Dominance?
  63. 63. What Are Privacy Coins and Are They Legal?
  64. 64. What is an Initial Farming Offer (IFO)?
  65. 65. Michael Saylor, Self-Proclaimed Bitcoin Maximalist
Lesson 52 of 65
In Progress

52. Bitcoin Pizza Day

A story that has long been written in the history of Bitcoin. And it will probably stay with us for a long time.

You are well aware that Bitcoin is the first and now – the most valuable and popular cryptocurrency. However, this was not the case from the beginning. In its early days, many people did not believe that Bitcoin would become what it is today.

Now imagine spending around US$238 million on two large pizzas from Papa Johns. Yes, you read that right. No wonder it sounds very ridiculous. We will quote Laszlo Hanyecz’s story below.

The history of Bitcoin Pizza Day

On 22 May, every year, the cryptocurrency community celebrates Bitcoin Pizza Day. It is worth exploring the history behind the day from start to finish. However, it is important to recognize that one of the first BTC miners and a Florida-based programmer – Laszlo Hanyecz – has made a lasting mark on cryptocurrency history.

Before Bitcoin’s first halving, which took place in 2012, the reward for mining a block was as much as 50 BTC. Counting in our heads very quickly, we could have received as much as 10 000 BTC in reward for mining around 200 blocks at that time. Given that Bitcoin was in its early stages at the time, mining was somehow not competitive.

Laszlo Hanyecz, one of the first miners of the flagship cryptocurrency, therefore had a straightforward path to rake in a not inconsiderable pot of BTC from mining. So, in 2010, he decided that it would be a great idea to buy pizza with this cryptocurrency. Laszlo put out an offer on the Bitcointalk forum that he would buy pizza with the digital asset. In the posting, we could read that he would donate 10,000 BTC to anyone who orders, picks up and delivers two large Papa John’s pizzas for him. Four days after putting out his proposal, someone accepted Laszlo’s offer. And that’s how history was made, celebrated every year. It was the first time someone actually used Bitcoin as a medium of exchange in a financial transaction that involved real goods.

What’s so interesting about buying pizza with Bitcoin?

Bitcoin Pizza Day has a historical significance that is evident in the use of cryptocurrency to purchase real products. Laszlo, probably not entirely intentionally, pointed out an example of Bitcoin use. According to the man himself, the purchase of pizza with BTC showed the whole world that Bitcoin, as a cryptocurrency, is real. However, charging as much as 10,000 BTC for two large pizzas was a huge loss for Laszlo. After the transaction, he only had single pieces left in his wallet. Have you already calculated how much two pizzas cost at current Bitcoin prices?

Many, of course, believe that Laszlo made a stupid decision that irreversibly diminished his finances by several million. However, if you take a closer look, he actually pointed out the direction in which cryptocurrencies would go. Today, we use digital assets to pay for property and even coffee!

Laszlo Hanyecz

Laszlo is one of the earliest co-founders of Bitcoin. As the story reads, he was most likely the first developer to provide logic for Bitcoin and the Mac OS. Furthermore, he is the one who appears in the records as the first developer of this flagship cryptocurrency to create GPU mining code tailored to Bitcoin. Interestingly, it was probably Laszlo who tested the GPU mining code for mining cryptocurrencies with higher hash rates.

Our hero of today’s lesson never hesitated to spend his Bitcoin. He also never regretted spending 10,000 BTC on pizza. He was the first person to use a digital asset for an actual transaction, and the rest of the world followed suit.

Therefore, we cannot define Laszlo as a ‘pizza guy’. His purchase of pizza was an inspiration to the rest of the people. He was the one who proved that Bitcoin and digital assets can be used for something more. They can be a variation of electronic cash to purchase the products and services we want.


The story of this pizza will be with us for years to come. Laszlo’s action is a very early example of Bitcoin adoption. Plan your Bitcoin Pizza Day to make it as memorable as it was for Laszlo too!