Random FactsCuriousOneFebruary 09, 2015atm, four, Inventor, length, pin, remember, six, twelve, WifeComment The inventor of the ATM John Shepherd-Baron, originally made 6 digit pin codes, but his wife could only remember four. So that's what stuck Random FactsCuriousOneFebruary 09, 2015atm, four, Inventor, length, pin, remember, six, twelve, WifeComment
