In September 1958, Bank of America launched a new product called BankAmericard in Fresno. After a troubled gestation during which its creator resigned, BankAmericard went on to become the first successful credit card; that is, a financial instrument that was usable across a large number of merchants and also allowed cardholders to revolve a balance (earlier financial products could do one or the other but not both). In 1976, BankAmericard was renamed and spun off into a separate company known today as Visa Inc.
बैंकअमेरिकार्ड ने ग्राहकों को ऐसा क्या करने की अनुमति दी जो वे पिछले वित्तीय साधनों के साथ नहीं कर सकते थे? 
एक संतुलन बनाने के लिए 