Which city's transportation system first introduced the contactless smart card payment system that revolutionized public transit fare collection worldwide?

The transportation industry has seen remarkable innovations in retail payment systems over the years, transforming how passengers pay for their journeys. From traditional cash payments to contactless cards and mobile apps, payment technologies have significantly enhanced the customer experience while streamlining operations for transportation providers. This trivia question tests your knowledge about a groundbreaking retail payment innovation that changed urban transportation forever.

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Hong Kong with the Octopus card (1997)
London with the Oyster card (2003)
Tokyo with the Suica card (2001)
Seoul with the T-money card (2004)