Expo 61
1961 CE.
Shown on the map at 45.017°, 7.667°.
Expo 61 was the international labour exhibition held in 1961 in the Italian City of Turin. It was the 15th specialized exposition recognized by the Bureau International des Expositions (BIE). Italy used the opportunity to expand the event with an exposition celebrating the centennial of Italian unity. The result is that the exhibition is widely remembered as Italia '61.
Text from the Wikipedia article Expo 61, licensed CC BY-SA 4.0.