Which city's transit system was the first to implement the contactless smart card payment system that became the model for many transportation payment solutions worldwide?

The transportation industry has seen significant innovations in retail payment systems over the years. From traditional cash-based fare collection to contactless payments and mobile apps, the way we pay for transportation services has evolved dramatically. Test your knowledge about a groundbreaking payment system that revolutionized urban transit and influenced payment solutions worldwide.

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