Bitcoin Pizza Day marks Bitcoin's first real-world purchase, turning two pizzas into crypto legend—celebrating innovation, community, and blockchain's journey.

It usually takes a ton of energy to operate, but Algorand — a digital currency developed in 2017 — changed a key part of the technology, according to Blockchain Magazine.

Bitcoin is one of the most successful “real-world” applications of blockchain technology, a decentralized public ledger maintained by a network of users.