Which company pioneered the first widely successful customer loyalty program in the 1890s, using collectible stamps that customers could redeem for merchandise?

Throughout history, retailers have developed innovative ways to build customer loyalty. While loyalty programs are now ubiquitous in modern retail, they have fascinating historical roots. This trivia question explores the early development of customer loyalty programs that laid the groundwork for the sophisticated data-driven loyalty systems we see today. Test your knowledge about this important aspect of retail history that revolutionized how businesses build long-term customer relationships.

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S&H Green Stamps (Sperry & Hutchinson Company)
Montgomery Ward's 'Preferred Customer Club'
Sears Roebuck's 'Loyal Shopper Program'
Woolworth's 'Red Star Rewards'