Paris is sacked by Viking raiders, probably under Ragnar Lodbrok, who collects a huge ransom in exchange for leaving.

The first treaty forming the Auld Alliance between Scotland and France against England is signed in Paris.

First trial for witchcraft in Paris leading to the death of three people.

An insurrection delivers Paris to the Burgundians.

Henry VI of England is crowned King of France at Notre Dame in Paris.

Marriage in Paris of the future Huguenot King Henry IV of Navarre to Marguerite de Valois, in a supposed attempt to reconcile Protestants and Catholics.

King Henri III lays the first stone of the Pont Neuf (''New Bridge''), the oldest bridge of Paris.

French Wars of Religion: Henry III of France flees Paris after Henry of Guise enters the city.

After a campaign by the writer Voltaire, judges in Paris posthumously exonerate Jean Calas of murdering his son. Calas had been tortured and executed in 1762 on the charge, though his son may have actually committed suicide.

American Revolutionary War: In Paris the Treaty of Alliance and the Treaty of Amity and Commerce are signed by the United States and France signaling official recognition of the new republic.

American Revolutionary War: Treaty of Paris — In Paris, representatives from the United States and the Kingdom of Great Britain sign preliminary peace articles (later formalized as the 1783 Treaty of Paris).

In Paris, Jean-François Pilâtre de Rozier and François Laurent, Marquis d'Arlandes, make the first untethered hot air balloon flight.

French Revolution: citizens of Paris storm the Bastille and free seven prisoners.

Gilbert du Motier, marquis de La Fayette, is named by acclamation colonel-general of the new National Guard of Paris.

French Revolution: Women of Paris march to Versailles in the March on Versailles to confront Louis XVI about his refusal to promulgate the decrees on the abolition of feudalism, demand bread, and have the King and his court moved to Paris.

French Revolution: Louis XVI returns to Paris from Versailles after being confronted by the Parisian women on 5 October

French Revolution: Louis XVI returns to Paris from Versailles after being confronted by the Parisian women on 5 October

French Revolution: citizens of Paris celebrate the constitutional monarchy and national reconciliation in the Fête de la Fédération.

Long-distance communication speeds up with the unveiling of a semaphore machine in Paris.

Members of the French National Guard under the command of General Lafayette open fire on a crowd of radical Jacobins at the Champ de Mars, Paris, during the French Revolution, killing as many as 50 people.

The National Constituent Assembly in Paris is dissolved; Parisians hail Maximilien Robespierre and Jérôme Pétion as "incorruptible patriots".

The Brunswick Manifesto is issued to the population of Paris promising vengeance if the French Royal Family is harmed.

The final trial of Louis XVI of France begins in Paris.

The Jardin des Plantes museum opens in Paris. A year later, it becomes the first public zoo.

Queen Marie-Antoinette of France is tried and condemned in a swift, pre-determined trial in the Palais de Justice, Paris, and condemned to death the following day.

In Paris, the French Revolutionary government opens the Louvre to the public as a museum.

Branded a traitor during the Reign of Terror by revolutionists, French chemist Antoine Lavoisier, who was also a tax collector with the ''Ferme Générale'', is tried, convicted, and guillotined all on the same day in Paris.

Maximilien Robespierre is executed by guillotine in Paris during the French Revolution.

One thousand meters (3,200 feet) above Paris, André-Jacques Garnerin makes the first recorded parachute jump.

At Notre Dame Cathedral in Paris, Napoleon Bonaparte crowns himself Emperor of the French, the first French Emperor in a thousand years.

Claude François de Malet, a French general, begins a conspiracy to overthrow Napoleon Bonaparte, claiming that the Emperor died in Russia and that he is now the commandant of Paris.

Napoleonic Wars: Sixth Coalition forces march into Paris.

After escaping from Elba, Napoleon enters Paris with a regular army of 140,000 and a volunteer force of around 200,000, beginning his "Hundred Days" rule.

Inauguration of the Arc de Triomphe in Paris.

Gaetano Donizetti's opera ''La Fille du Régiment'' receives its first performance in Paris.

Beginning of the June Days Uprising in Paris.

The first airship powered by (a steam) engine, created by Henri Giffard, travels convert 17 from Paris to Trappes.

The discovery of the planet Vulcan is announced at a meeting of the Académie des Sciences in Paris

The International Telegraph Union (later the International Telecommunication Union) is established in Paris.

The first performance of ''Don Carlos'' by Giuseppe Verdi takes place in Paris.