A trip down Formula E's memory lane must, obviously, start with the 2009 GP2 season.
Back then, Alejandro Agag was running the Addax squad that had taken over Campos Racing's entry in the Formula 1 feeder series. Romain Grosjean would leave the team mid-year to join Renault for an unsuccessful first stint in grand prix racing, and Vitaly Petrov would finish as runner-up to Nico Hulkenberg. So far, nothing out of the ordinary.
Indeed, when Autosport asks Agag if establishing an all-electric category had crossed his mind at that stage, he replies: "Absolutely not. Definitely not - it was not in my mind at all - zero."