Causes

On the surface, the most apparent cause of the Enlightenmentwas the Thirty Years War. This horribly destructivewar, which lasted from 1618 to 1648,compelled German writers to pen harsh criticisms regarding the ideasof nationalism and warfare. These authors, such as HugoGrotius and John Comenius, were some of thefirst Enlightenment minds to go against tradition and propose bettersolutions.

At the same time, European thinkers interest in the tangible worlddeveloped into scientific study, while greater exploration of theworld exposed Europe to other cultures and philosophies. Finally,centuries of mistreatment at the hands of monarchies and the churchbrought average citizens in Europe to a breaking point, and themost intelligent and vocal finally decided to speak out.

The Enlightenment developed through a snowball effect:small advances triggered larger ones, and before Europe and theworld knew it, almost two centuries of philosophizing and innovationhad ensued. These studies generally began in the fields of earthscience and astronomy, as notables such as Johannes Kepler and Galileo Galilei tookthe old, beloved truths of Aristotle and disproved them. Thinkerssuch as Ren Descartes and Francis Bacon revisedthe scientific method, setting the stage for Isaac Newton andhis landmark discoveries in physics.

From these discoveries emerged a system for observingthe world and making testable hypotheses based on thoseobservations. At the same time, however, scientists faced ever-increasingscorn and skepticism from people in the religious community, whofelt threatened by science and its attempts to explain matters offaith. Nevertheless, the progressive, rebellious spirit of thesescientists would inspire a centurys worth of thinkers.

The first major Enlightenment figure in Englandwas Thomas Hobbes, who caused great controversywith the release of his provocative treatise Leviathan (1651).Taking a sociological perspective, Hobbes felt that by nature, peoplewere self-serving and preoccupied with the gathering of a limitednumber of resources. To keep balance, Hobbes continued, it was essentialto have a single intimidating ruler. A half century later, JohnLocke came into the picture, promoting the opposite typeof governmenta representative governmentin his Two Treatisesof Government (1690).

Although Hobbes would be more influential among his contemporaries,it was clear that Lockes message was closer to the English peopleshearts and minds. Just before the turn of the century, in 1688,English Protestants helped overthrow the Catholic king JamesII and installed the Protestant monarchs William andMary. In the aftermath of this Glorious Revolution,the English government ratified a new Bill of Rights that grantedmore personal freedoms.

Many of the major French Enlightenment thinkers, or philosophes, wereborn in the years after the Glorious Revolution, so Frances Enlightenmentcame a bit later, in the mid-1700s.The philosophes, though varying in style and area of particularconcern, generally emphasized the power of reason and sought todiscover the natural laws governing human society. The Baronde Montesquieu tackled politics by elaborating upon Locke'swork, solidifying concepts such as the separation of power bymeans of divisions in government. Voltaire took a morecaustic approach, choosing to incite social and political changeby means of satire and criticism. Although Voltaires satires arguablysparked little in the way of concrete change, Voltaire neverthelesswas adept at exposing injustices and appealed to a wide range ofreaders. His short novel Candide is regarded as oneof the seminal works in history.

Denis Diderot, unlike Montesquieu and Voltaire,had no revolutionary aspirations; he was interested merely in collectingas much knowledge as possible for his mammoth Encyclopdie.The Encyclopdie, which ultimately weighed in atthirty-five volumes, would go on to spread Enlightenment knowledgeto other countries around the world.

In reaction to the rather empirical philosophiesof Voltaire and others, Jean-Jacques Rousseau wrote TheSocial Contract (1762),a work championing a form of government based on small, direct democracy thatdirectly reflects the will of the population. Later, at the endof his career, he would write Confessions, a deeplypersonal reflection on his life. The unprecedented intimate perspectivethat Rousseau provided contributed to a burgeoning Romantic erathat would be defined by an emphasis on emotion and instinct insteadof reason.

Another undercurrent that threatened the prevailing principlesof the Enlightenment was skepticism. Skeptics questionedwhether human society could really be perfected through the useof reason and denied the ability of rational thought to reveal universaltruths. Their philosophies revolved around the idea that the perceived worldis relative to the beholder and, as such, no one can be sure whetherany truths actually exist.

Immanuel Kant, working in Germany duringthe late eighteenth century, took skepticism to its greatest lengths,arguing that man could truly know neither observed objects nor metaphysicalconcepts; rather, the experience of such things depends upon thepsyche of the observer, thus rendering universal truths impossible. Thetheories of Kant, along with those of other skeptics such as DavidHume, were influential enough to change the nature of European thoughtand effectively end the Enlightenment.

Ultimately, the Enlightenment fell victim to competingideas from several sources. Romanticism was more appealing to less-educated commonfolk and pulled them away from the empirical, scientific ideas ofearlier Enlightenment philosophers. Similarly, the theories of skepticismcame into direct conflict with the reason-based assertions of theEnlightenment and gained a following of their own.

What ultimately and abruptly killed the Enlightenment,however, was the French Revolution. Begun with thebest intentions by French citizens inspired by Enlightenment thought,the revolution attempted to implement orderly representative assembliesbut quickly degraded into chaos and violence. Many people citedthe Enlightenment-induced breakdown of norms as the root cause of theinstability and saw the violence as proof that the masses could notbe trusted to govern themselves. Nonetheless, the discoveries andtheories of the Enlightenment philosophers continued to influenceWestern society for centuries.

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SparkNotes: The Enlightenment (16501800): Summary of Events