An Italian lottery called Enalotto was established in Italy back in the 1950s. The lottery ran for about four decades until 1996 when the lottery’s operator SISAL took over its operations. SISAL modified the lottery to become the currently known SuperEnalotto. At that time, there was no particular draw event for determining the six main winning numbers. Instead, the numbers were the first drawn numbers in the lotto draws of Bari, Florence, Milan, Naples, Palermo, and Rome, in that specific order.
Duplicate numbers made it impossible to win the jackpot. SuperEnalotto used the second number of a city's draw if the first number had already been used. That helped address the challenge of number duplicity. That made the probability of numbers of two cities being the same very low.
On June 30, 2009, SuperEnalotto introduced its draws, which are used up to date. Nowadays, the draws take place three times every week. All the draws take place in Rome on Tuesdays, Thursdays, and Saturdays. All ticket sales usually close exactly half an hour before the draws.