Bastille Day is the French national holiday celebrating the storming of the Bastille on July 14th 1789. The Bastille was a prison where political prisoners were held and tortured. The attack on the Bastille was the beginning of the French revolution and ultimately the execution of King Louis XVI and his wife Queen Marie Antoinette. In 1880, Benjamin Raspail suggested making July 14th a National French holiday and it has been celebrated every since then. The French tricolor flag was officially adopted in 1794 and it is believed that the colors red and blue are linked to the City of Paris and the white is from the House of Bourbon.
You can join the French in celebrating this hoilday by flying the French flag.
You can find our selection of French flags here https://www.anyflag.com/AFG/category/FRANCE-FLAGS.html