Note: Discover Bank was acquired by Capital One; banking products and services are no longer offered through Discover. Read our full review of Capital One. Summary: Discover Bank launched nationally in 1986 with the Discover Card. Since its founding, Discover has expanded from a credit card issuer to an online bank, offering a wide range of credit cards, including rewards credit cards, credit cards for building credit, fee-free credit cards, and more. It also offers several online bank accounts, including ...