The city is the hub of France's motorway network, and is surrounded by an orbital road, the Périphérique. On/off ramps of the Peripherique are called 'Portes', as they correspond to the city gates. Most of these 'Portes' have parking areas and a metro station, where non-residents are advised to leave cars. Traffic in Paris is notoriously heavy, slow and tiresome.
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".
Paris is served by two principal airports: Orly Airport, which is south of Paris, and the Charles De Gaulle International Airport in nearby Roissy-en-France. A third and much smaller airport, at the town of Beauvais, 70km (45 miles) to the north of the city, is used by charter and low-cost airlines. Le Bourget airport nowadays only hosts business jets, air trade shows and the aerospace museum.
Traditionally Paris was known as Paname in French slang, but this vulgar appellation is gradually losing currency. ( "I'm from Paname"?..)
The French Revolution began with the storming of the Bastille on July 14, 1789. Many of the conflicts in the next few years were between Paris and the outlying rural areas.
The river Seine is well known for its tree-lined quais (walks along the river banks), open-air bookstalls and historic bridges that connect the Right and Left banks. Paris is also famous for its tree-lined boulevards such as the Champs-Élysées, and for its many architectural gems.
In 885 the city was faced with a massive Viking invasion force, said to have numbered 700 ships and 30,000 men. Its inhabitants sought the assistance of Robert the Strong, Count of Anjou, and his son Odo, Count of Paris. Odo led the defence of the city in opposition to a ten-month Viking siege in 885 and became co-ruler of the Empire with Charles the Simple. His son Hugh Capet was elected King of France (or Francia - literally the land of the Franks) in 987. He made Paris his capital and founded a long-lasting dynasty, the Capetians.
His grandson Louis IX, renowned for his extreme piety (and later canonised as St Louis) established the city as a major centre of pilgrimage in the 13th century with the construction of the cathedral of Notre Dame de Paris, the Basilica of St Denis and the Sainte-Chapelle on the Ile de la Cité. The latter was one of the finest medieval Gothic religious buildings ever constructed and was built to house Louis' most precious possession - the (alleged) Crown of Thorns, purchased from the bankrupt Byzantine Empire at an extortionate price.
The Capetian line died out in 1328, leaving no male heir. Edward II of England claimed the French throne by virtue of his descent (via his mother) from Philip IV of France. This was rejected by the French barons, who supported the rival claim of Philippe of Valois (Philip VI of France). The Hundred Years' War thus began, followed swiftly by the arrival of the Black Death.
A general uprising in Paris followed with three days of fighting between loyalists and rebels, including whole regiments of the Paris garrison. The king was forced to abdicate, being replaced by the more acceptable Louis-Philippe.
The city emerged into an energetic but restless interwar period, enlivened by the arrival of glamorous émigrés such as Josephine Baker. It was a troubled political period, however, especially when the Great Depression hit Paris.
Louis XIII became king at the age of only eight, with political power exercised by his mother Marie de Médicis in the role of regent. Although Louis took over when he reached the age of majority, at 15, the real power was exercised by the brilliant but ruthless Cardinal Richelieu, who greatly expanded royal power.
At the same time, Paris acquired a less savoury reputation as the "sin capital of Europe", with hundreds of brothels, revues and risqué cabarets such as the famous Moulin Rouge. The city also acquired its metro system, opened in 1900.
Under Louis XVI, Paris reached new heights of prestige as a centre of the arts, sciences and philosophy. It was in Paris that the Montgolfier brothers made their historic balloon ascents in 1783. However, the French state was by now virtually bankrupt, its finances drained by the Seven Years' War and the French intervention in the American War of Independence.