Nationalism during the French Revolution developed as a potent ideological force which transformed the society of France and influenced many parts of Europe. Rooted in the ideals of liberty, equality, and fraternity, nationalism emerged as a unifying sentiment that bonded citizens of varying social classes and regions under a shared national identity. The fall of the Bastille on 14 July 1789 is often regarded as a key event that sowed the seeds of nationalistic fervor. The storming of this fortress symbolized the collective will of the French people to overthrow oppression and reclaim their rights. This singular act became a powerful symbol around which the national identity began to coalesce, emphasizing the common struggle against tyranny. With the publication of the Declaration of the Rights of Man and of the Citizen in August 1789, the revolutionary ideas were codified into principles that explicitly promoted the sovereignty of the nation. These principles contributed to the spread of patriotic sentiments, encouraging individuals to identify more strongly with the nation-state rather than with local or regional identities. This marked a departure from the traditional allegiances to feudal lords or the monarchy. The revolutionary wars that followed further fueled nationalism. As France was engaged in conflicts against various European coalitions, the notion of defending the nation became intertwined with individual and collective identity. Conscription (or the levée en masse) instituted in 1793 mandated that all able-bodied men defend the revolution, fostering a sense of national duty and unity. The sense of patriotism was bolstered by the songs and anthems of the era, particularly "La Marseillaise," which would later become the national anthem of France. Revolutionary symbols also played a crucial role in shaping nationalistic sentiments. The tricolor flag, featuring blue, white, and red stripes, came to represent the unity of the French people. The Phrygian cap (often depicted in art and iconography) symbolized freedom and the revolutionary spirit. Celebrations, festivals, and rituals were organized to cultivate and reinforce the national identity; these events served as platforms for public participation and expression of loyalty to the nation. Nationalism thus became an integral part of the revolutionary agenda. The Committee of Public Safety, the executive government during the Reign of Terror, utilized this sentiment to galvanize the public and gain support for its policies. However, the radical measures adopted during this period also revealed the darker aspects of nationalism, as dissent was often quashed in the name of national unity. Ultimately, the legacy of nationalism from the French Revolution extended beyond France's borders. The spread of revolutionary ideas and the restructuring of societies across Europe in the 19th century were directly influenced by the nationalist ideologies that emerged during this transformative period. Nationalism became a double-edged sword, inspiring movements for self-determination while also fostering intense rivalries and conflicts among emerging nation-states.