Bitcoin is not the first cryptocurrency. While it was the first decentralized digital currency to gain widespread popularity, there were earlier attempts at creating digital currencies. For example, DigiCash, created by David Chaum in the 1980s, and B-Money, proposed by Wei Dai in 1998, were both early attempts at creating digital currencies. However, Bitcoin was the first to successfully solve the double-spending problem and gain significant adoption, making it the most well-known and influential cryptocurrency.