The Romans held out here for as long as anywhere else in the Western Empire, but by 508 CE they were gone, replaced by Clovis of the Franks, who is considered by the French to have been their first king. Clovis' descendants, aka the Carolingians, held onto the expanded Lutetian state for nearly 500 years through Viking raids and other calamities, which finally resulted in a forced move by most of the population back to the islands which had been the centre of the original Celtic village. The Capetian Duke of Paris was voted to succeed the last of the Carolingians as King of France, ensuring the city a premier position in the medieval world. Over the next several centuries Paris expanded onto the right bank into what was and is still called le Marais (The Marsh). Quite a few buildings from this time can be seen in the 4th arrondissement.
The medieval period also witnessed the founding of the Sorbonne. As the "University of Paris", it became one of the most important centres for learning in Europe -- if not the whole world, for several hundred years. Most of the institutions that still constitute the University are found in the 5th, and 13th arrondissements.
In the late 18th century, there was a period of political and social upheaval in France and Europe, during which the French governmental structure, previously a monarchy with feudal privileges for the aristocracy and Catholic clergy, underwent radical change to forms based on Enlightenment principles of nationalism, citizenship, and inalienable rights. Notable events during and following the revolution were the storming of the Bastille 4th arrondissements, and the rise and fall of Napoleonic France. Out of the violent turmoil that was the French Revolution, sparked by the still known Passion des Français, emerged the enlightened modern day France.
The Paris of today was built long after the Capetian and later the Bourbon Kings of France made their mark on Paris with the Louvre and the Palais Royal, both in the 1st. In the 19th century, Baron von Hausmann set about reconstructing the city, by adding the long straight avenues and replacing many of the then existing medieval houses, with grander and more uniform buildings.
New wonders arrived during La Belle Époque, as the Parisian golden age of the late 19th century is known. Gustave Eiffel's famous tower, the first metro lines, most of the parks, and the streetlights (which are partly believed to have given the city its epithet "the city of light") all come from this period. Another source of the epithet comes from Ville Lumière, a reference not only to the revolutionary electrical lighting system implemented in the streets of Paris, but also to the prominence and aura of Enlightenment the city gained in that era.
The twentieth century was hard on Paris, but thankfully not as hard as it could have been. Hitler's order to burn the city was thankfully ignored by the German General von Choltitz who was quite possibly convinced by a Swedish diplomat that it would be better to surrender and be remembered as