This Day in Auto History: 6.28.1897 A German-built Benz Velo, appearing in a Grand Forks parade to promote cigars, is the first automobile to be driven in North Dakota 6.28.1914 Archduke Franz Ferdinand is assassinated in Sarajevo, Bosnia, an action that resulted in the outbreak of World War I, while riding in an Austro-Daimler that was being chauffered by racer Otto Merz, a Mercedes team driver 6.28.1925 The first Belgian Grand Prix is staged in Spa-Francorchamps, and won by Antonio Ascari in an Alfa Romeo P2 6.28.1936 Alberto Ascari makes his motorcycle racing debut as a prelude to his automobile racing career 6.28.1951 The Nash Rambler County Club hardtop coupe is introduced as a mid-year model

Source: Automobile History Day By Day, by Douglas A. Wick