January 12, 1950: CBS reveals their system to the public.
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，这一点在新收录的资料中也有详细论述
as the main entry point of the API.
See how that works? See how you typed 5 numbers and 3 fields filled themselves in? See how you're now typing your street address and it already knows what city you're in? That's not magic. That's a lookup table. We've had those since the 1960s.