This is the biggest attendance at a sporting event held in an enclosed stadium. The crowd number is an unofficial number - the official crowd (people who paid tickets) that day was 173,850. Due to its large capacity, Maracana stadium has many more reported sporting events with large attendance figures.
Bitcoin is a digital currency (also called crypto-currency) that is not backed by any country's central bank or government. Bitcoins can be traded for goods or services with vendors who accept Bitcoins as payment.
Bitcoin is a decentralized digital currency, or cryptocurrency, based on a peer-to-peer network and can be exchanged through computers internationally without a financial intermediary. The system was first introduced by an unidentified programmer or group under the name of Satoshi Nakamoto in 2009.