The Flag of Quebec, known as the 'Fleurdelisé', was officially adopted on this day, representing a pivotal moment for the province's identity. The design features a white cross and four white fleurs-de-lis on a blue field, embodying both the French heritage and the Christian roots of the province. This adoption followed a period of increasing nationalism in Quebec, where the desire for a distinctive cultural identity was growing amidst a Canadian landscape largely dominated by English-speaking influences.

The decision to adopt the flag was made by the government of Premier Maurice Duplessis, who recognized the importance of a symbol that resonated with the French-speaking majority in Quebec. The flag's first flight atop the National Assembly of Quebec symbolizes a newfound pride and unity among Quebeckers. It was made official following a series of discussions dating back to the late 1920s, placing greater emphasis on the significance of cultural symbols.

This event not only solidified the flag's importance in the provincial identity but also laid the groundwork for future developments in Quebec nationalism. Flag Day, celebrated annually, serves as a reminder of Quebec's distinct identity within Canada and showcases the pride Quebeckers hold for their heritage and culture, carrying patriotic significance to this day.