American Express entered the payment card business in 1958, when it introduced its first charge card in the United States and Canada. Unlike a credit card, the charge card required customers to pay their bill in full when it was due. American Express expanded its card offerings in 1966 with a Corporate Card for business customers and a bank-issued credit card that allowed customers to carry a balance. In 1969, the company introduced a green version of its charge card that became one of its most recognizable products.
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