Inside you will find first the chronological sequence of fundamental discoveries and theories concerning light and electrons. This gives a synthetical outline of the stepping-stones leading to the idea of the dual wave-particle behaviour, hence to the planning of the single-electron interference.
A fundamental contribution to the realization of the latter was given by the group of Bologna researchers Pier Giorgio Merli, Gian Franco Missiroli, and Giulio Pozzi, who first reported in an international magazine (Am. J. Phys. 44 (1976) 306) on the experiment successfully carried out over the time span 1974-1976.
In the text referring to the chronicle of the 1976 experiment, we have sought to reconstruct, through video clips in which the protagonists themselves speak, the steps which led to its realization, the motivations prompting them to work toward that goal, and the conditions which allowed them to pursue their objective up to the final achievement.