Blockchain is a type of database storing an immutable set of data, verifiable to anyone with access to it —through the Internet. The Bitcoin is the first decentralized digital currency. It was created in 2009, by an anonymous founder or group of founders... blockchain solely stores currency transactions, while other blockchains like Ethereum also store smart contract code: shared rules automating financial transactions. Check more here.
I'm a literature professional in the crypto world since 2016. It doesn't sound very compatible, but I've been learning and teaching about blockchain and cryptos for international portals since then. After hundreds of articles and diverse content about the topic, now you can find me here on Alfacash, working for more decentralization.