Bitcoin Pizza Day
2010-05-22
Bitcoin Pizza Day: Celebrating the Pizzas Bought for 10,000 BTC, Coindesk, 2014-05-22
Bitcoin Pizza Day and Why It Is Important, Bitcoinchaser, 2019-05-20
Bitcoin Pizza Day (YouTube), Coinbook, 2019-05-20
The Man Behind Bitcoin Pizza Day Is More Than a Meme: He’s a Mining Pioneer, Bitcoinmagazine, 2019-05-21