#IsraelIranConflict BTC is the abbreviation for Bitcoin, which is the first decentralized cryptocurrency. It was invented in 2008 by an unknown entity using the pseudonym Satoshi Nakamoto, and its use as a currency began in 2009.

Here's a quick overview of Bitcoin:

* Decentralized: It operates on a peer-to-peer network without a central authority like a bank or government.

* Blockchain Technology: Transactions are recorded on a public, distributed ledger called a blockchain, which is secured by cryptography.