How did Jacobins try to wipe out the old order?

When the Jacobins came to power in revolutionary France, they decided to dechristianize many aspects of French life by implementing a new calendar based on the chronology of the revolution. The Jacobins who were led by Robespierre also implemented the cult of the supreme being as an attempt to further dechristianize France. They also initaited the so called Reign of Terror with mass executions of aristocrats and others considered to be enemies of the revolution. Even moderate revolutionaries who favoured a constitutional monarchy were not spared since the Jacobins were instrumental in abolishing the monarchy. Lastly, they, including Robespierre, voted for the execution of Louis XVI as a traitor to France officialy ending the monarchy.