Paris was occupied by a Gallic tribe until the Romans arrived in 52 BC. The invaders referred to the previous occupants as the Parisii, but called their new city Lutetia, meaning "marshy place". About fifty years later the city had spread to the left bank of the Seine, now known as the Latin Quarter, and had been renamed "Paris".
The grateful Directoire sent Napoleon to Italy to aid the defence against the various foreign armies threatening France. He was spectacularly successful and in 1798 was given command of an expedition to Egypt, which he nearly conquered. He returned with great prestige, which he used to ruthless effect in November 1799 to seize power. The following year, Napoleon was declared first consul.
The city's status was reflected in the construction of grandiose new monuments, such as the Arc de Triomphe and the Eglise du Dome in which Napoleon's body was interred. Much of the population, however, lived in appalling conditions in diseased slums; a cholera outbreak in 1831 killed over 19,000 people.
Louis and those who supported an agreement with the monarchy were accused by the radical Jacobins of being the stooges of foreign powers, and on 10 August 1792 a mob demanded that the National Assembly depose the king. When the demand was refused, the mob attacked the Tuilleries and seized the royal family. Power now passed to the radical Commune de Paris, led by Georges Danton, Marat and Robespierre.
The Merovingian kings died out in 751, to be replaced by the Carolingians. Pépin was proclaimed king of the Franks in 751, to be succeeded by Charlemagne, who moved the capital of his Holy Roman Empire from Paris to Aachen.
Greater Paris metropolitan area, with a total GDP higher than Australia, is the largest financial and business center of continental Europe (on par with London), harboring more than 30% of France's white-collar population, as well as more than 40% of the headquarters of French companies, with the largest business district of Europe (La Défense), and the 2nd largest stock exchange in Europe (Euronext).
The next four years saw an increasingly brutal occupation regime imposed on the city. On the surface, things continued much as before - the "City of Light" was an extremely popular assignment for German forces and a favourite destination for those with time off.
The city was saved, however, by a desperate French effort to reinforce their lines and by a German failure to press home the attack. In the most famous incident of the "miracle on the Marne", as it became known, thousands of Parisian taxis were commandeered to carry soldiers to the front lines. The Germans were pushed back to the Oise some 75 miles away from the city.
Charles VII of France tried but failed to retake the city in 1429, despite the assistance of Joan of Arc (who was wounded in the attempt). The following year, Henry VI of England was crowned King of France at Notre-Dame. French persistence paid off in 1437 when Charles finally managed to retake the city after several failed sieges.
Prior to 1968, département 75 was the Seine département, which contained the city of Paris and its immediate suburbs. The splitting up of the Seine département resulted in the creation of four new départements: Paris proper (75), and three départements (Hauts-de-Seine, Seine-Saint-Denis and Val-de-Marne) forming a ring around Paris, often called la petite couronne (i.e. the "small ring", as opposed to the "large ring" of the more distant suburbs of Paris).