What was the idea that originated in the 1920s behind buy now pay later?

The idea behind "buy now, pay later" (BNPL) originated in the 1920s as a consumer credit concept aimed at making purchases more accessible to a broader audience. Retailers introduced installment plans, allowing customers to acquire goods immediately while paying for them over time, often with little to no interest. This approach catered to the growing consumer culture of the era, promoting spending and stimulating economic growth. BNPL has since evolved but retains the core principle of enabling immediate consumption while deferring payment.