Cast your mind back – if you can – to September 1978. Jim Callaghan announced he would not call an early election (which he might have won), Pope John Paul I died after 33 days of papacy and the Commodores were number one with their hit, 'Three Times A Lady".
That month also marked the first-ever Ipsos tracker poll which, nearly half a century later, has placed the Tories on 20 per cent, their lowest in the history of that survey, and an eye-watering 27 points behind Labour.
