Several schools on the Left Bank were grouped together into the Sorbonne, which counts Albertus Magnus and St. Thomas Aquinas among its early scholars. In the Middle Ages Paris prospered as a trading and intellectual nucleus, interrupted temporarily when the Black Death struck in the 14th century. Under the reign of King Louis XIV, the Sun King, from 1643 to 1715, the royal residence was moved from Paris to nearby Versailles.
The government agreed an armistice with the invaders and moved south to Vichy, while Paris remained - along with two thirds of France - under German occupation. Hitler himself arrived on 23 June to inspect his latest conquest and, in a famous piece of film footage, seem to dance a triumphant jig below the Eiffel Tower (this effective piece of Allied propaganda was created by film maker John Grierson, who looped a few frames of Hitler stomping his foot once in delight, making the dictator appear to dance).
The city was neglected by the Empire and suffered grievously from Viking raiders who repeatedly sailed upriver to attack it. On March 28, 845 Paris was sacked by Viking raiders, probably under Ragnar Lodbrok, who collected a huge ransom in exchange for leaving. The weakness of the late Carolingian kings led to the gradual rise in power of the Counts of Paris.
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).
Civil war broke out in France after the assassination of Louis of Valois, Duke of Orléans by the Burgundian John the Fearless. In the ensuing chaos, the English captured Paris in 1420. In 1422, Henry V of England died at the Chateau de Vincennes, just outside the city.
Napoleon's brief return from exile in 1815 saw him pass through Paris, en route to destiny at Waterloo on 18 June. His replacements, the restored Bourbon monarchs Louis XVIII (1814, 1815-1824) and Charles X (1824-1830), managed between them to provoke yet another revolution in Paris, confirming the saying that the Bourbons could "learn nothing and forget nothing."
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.
During the latter half of the 18th century, Paris became the intellectual and cultural capital of the Western world. It became a centre of the Enlightenment with its salons becoming the centre of the new thinking of the "Age of Reason." This was positively encouraged by the state, with Louis' mistress Madame de Pompadour supporting the city's intellectuals and prompting the king to construct striking new monuments.
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.
The combination of social unrest and a somewhat authoritarian, though democratic, government under de Gaulle proved explosive and in early May 1968 an uprising duly broke out, led by Parisian students and factory workers. The evenements (events) fizzled out amidst violence between police and demonstrators, but had a significant long-term effect, eventually forcing the retirement of de Gaulle and the overdue social liberalisation of the country. Many of the leaders of the May 1968 demonstrations went on to play significant roles in local and national politics.
Louis' reign saw major changes to the face of Paris; his mother commissioned the Palais du Luxembourg, while Cardinal Richelieu built the Palais Royal and rebuilt the Sorbonne. He also commissioned a number of major Baroque churches as a statement of the Catholic Counter-Reformation.
Paris' party continued virtually until the eve of the outbreak of the First World War on 2 August 1914. Like other French cities, Paris initially welcomed the war as an opportunity to gain revenge for the defeat of 1870. Within a month, however, the city was full of refugees and the Germans were just 15 miles from the city. The government was evacuated to Bordeaux in the expectation that Paris would again fall to German forces.
Paris became the scene of revolutionary ferment, with political clubs taking over buildings for their headquarters. The uprising had, however, badly disrupted food supplies and in October an angry crowd marched to Versailles to protest - whereupon Marie Antoinette allegedly dismissed them with her famous remark, "let them eat cake."
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.