The revolutionaries adopted the name Jacques to identify themselves with each other and their cause. It would also be harder to track individual revolutionaries if everyone was called Jacques. As word spread of the code, however, one could not always assume that every Jacques was an ally.
Notre Dame de Paris (Our Lady of Paris) is a Roman Catholic cathedral on the banks of the River Seine.
This stunning architectural creation took 182 years to build (1163-1345). It was seriously damaged during the French Revolution in 1793, and underwent extensive restoration during the 1800s.
It was the setting for Victor Hugo's famous book of 1831, The Hunchback Of Notre Dame.
Today it is a popular tourist attraction and a key landmark in Paris.