Symbolism in the French Revolution somewhat by region and period. The tricolore flag is derived from the cockades used in the 1790s. These were circular rosette-like emblems attached to the hat. Camille Desmoulins asked his followers to wear green cockades on 12 July 1789. The Paris militia, formed on 13 July, adopted a blue and red cockade. Blue and red are the traditional colours of Paris, and they are used on the city's coat of arms. Cockades with various colour schemes were used during the storming of the Bastille on 14 July. The blue and red cockade was presented to King Louis XVI at the
French Republican calendar whether the calendar should celebrate the Great Revolution, which began in July 1789, or the Republic, which was established in 1792. Immediately following 14 July 1789, papers and pamphlets started calling 1789 year I of Liberty and the following years II and III. It was in 1792, with the practical problem of dating financial transactions, that the legislative assembly was confronted with the problem of the calendar. Originally, the choice of epoch was either 1 January 1789 or 14 July 1789. After some hesitation the assembly decided on 2 January 1792 that all official documents would use the "era of