BNB, or Binance Coin, is a cryptocurrency that was created by the popular cryptocurrency exchange Binance. It was launched in 2017 as an integral part of Binance's platform. BNB operates on the Binance Chain, a blockchain created by Binance, and is designed to be used within the Binance ecosystem.

Initially, BNB was created as a utility token to facilitate transactions on the Binance exchange. Users could use BNB to pay for trading fees, participate in token sales, and access other services on the platform. By using BNB for these purposes, users could also benefit from discounted fees.

BNB quickly gained popularity and became one of the most successful cryptocurrencies in terms of market capitalization. In addition to its utility on the Binance exchange, BNB has found use cases outside of the platform. It is now accepted by various merchants and online platforms as a form of payment.

Binance has also expanded the utility of BNB through the introduction of Binance Smart Chain (BSC). BSC is a separate blockchain that runs parallel to the Binance Chain and provides a platform for developers to build decentralized applications (DApps) and smart contracts. BNB is used as the native cryptocurrency on Binance Smart Chain and is required for transaction fees, participating in token offerings, and staking on the network.

Furthermore, Binance has launched various initiatives to increase the adoption and utility of BNB. For example, Binance Launchpad enables users to invest in token sales of promising projects using BNB. BNB holders can also participate in Binance's decentralized exchange (DEX) and earn rewards through various staking programs.

It's important to note that the cryptocurrency market is highly volatile, and the value of BNB, like any other cryptocurrency, can fluctuate significantly. It is always advisable to do thorough research and exercise caution when investing in cryptocurrencies.