Bastille Day
The French National Day is the anniversary of Storming of the Bastille on 14 July 1789, a turning point of the French Revolution, as well as the Fête de la Fédération which celebrated the unity of the French people on 14 July 1790. Celebrations are held throughout France. The oldest and largest regular military parade in Europe is held on the morning of 14 July, on the Champs-Élysées in Paris in front of the President of the Republic, along with other French officials and foreign guests.
UN French Language Day
UN French Language Day is observed annually on 20 March. 
The event was established by UN's Department of Public Information in 2010 "to celebrate multilingualism and cultural diversity as well as to promote equal use of all six official languages throughout the Organization".