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."
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."
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).
By this time, Paris was a typically crowded early medieval city with timber buildings alongside surviving Roman remains. According to the chronicler Geoffrey of Tours, it suffered a disastrous fire in 585. The city grew beyond the boundaries of the Ile, with suburbs being established on both banks of the river.
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.
Paris is densely covered by a metro system, the Métro, as well as by a large number of bus lines. This interconnects with a high-speed regional network, the RER, and also the train network: commuter lines, national train lines, and the TGV (or derivatives like Thalys or Eurostar for specific destinations). There are two tangential tramway lines in the suburbs: Line T1 runs from Saint-Denis to Noisy-le-Sec, line T2 runs from La Défense to Issy. A third line along the southern orbital road is currently under construction.
Louis died in 1643, leaving the throne to his five-year-old heir Louis XIV. The new king and his family were forced to flee the city in 1648 by a rebellion, known as the Fronde, against royal authoritarianism and excessive taxes. Rebel rule proved considerably worse, however, and the king returned to a hero's welcome in 1653.
Lutetia was a prosperous place and occupied a very strategic position on the river, controlling shipping in both directions. It came under Roman control after the revolt of 52 BC when Vercingetorix led a Celtic uprising against the Romans under Caesar.
An invading Prussian army heading for Paris was defeated shortly afterwards, clearing the way for the bloodiest phase of the Revolution. A guillotine was erected in what is now the Place de la Concorde and was used on 21 January 1793 to execute Louis XVI. Marie Antoinette followed in October 1793.
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.
Citizens of Paris elect in each arrondissement some municipal council members. Each arrondissement has its own council, which elects the mayor of the arrondissement. Some members of the arrondissement councils form the Council of Paris, which elects the mayor of Paris, and has the double functions of a municipal council and the general council of the département.
Paris was, however, not spared from the religious violence affecting the rest of the country as Protestantism gained ground in defiance of an increasingly harsh Catholic backlash. Paris was a predominantly Catholic city - so much so that Ignatius Loyola founded the Society of Jesus there in 1534 - but also had a growing Protestant population. The rival religious factions pursued an increasingly bloodthirsty feud, with religiously-inspired assassinations and burnings at the stake.