On April 25th, 1792, Claude Joseph Rouget de Lisle composed “La Marseillaise” the song destined to become the French national anthem. Rouget composed the song as a rallying cry as Prussian and Austrian armies marched on France. The song became the French national anthem on Bastille Day, 1795. However, Napoleon I banned it during his reign. It was re-instated in 1879.