Which company initially issued the Discover Card in the mid-1980s?

The Discover Card was initially issued by Sears in the mid-1980s. Sears, a major retail company, launched the Discover Card as a response to the growing demand for credit cards that offered a wide network of acceptance and unique features, such as cash back rewards. The card was designed to reflect a new model of consumer credit that prioritized the needs of cardholders, which included no annual fees and rewards for using the card. This innovative approach to credit cards contributed to Discover's expansion and popularity in the market.

The other companies mentioned did not issue the Discover Card; they have their own credit card brands and systems. American Express, Visa, and MasterCard each operate their own networks and have distinct histories unrelated to the creation and launch of the Discover Card.