The great river of history has no single event that shapes currents here and now. But some events, seemingly uninteresting with their humble beginnings, may turn into gigantic storms that would shake humanity.
It would not be an overstatement to say Voltaire was the most influential French Enlightenment writer whose radical ideas led to French Revolution.
“In 1726, Voltaire responded to an insult from the young French nobleman Chevalier de Rohan, whose servants beat him a few days later. Since Voltaire was seeking compensation, and was even willing to fight in a duel, the aristocratic Rohan family obtained a royal lettre de cachet, an often arbitrary penal decree signed by the French King (Louis XV, in the time of Voltaire) that was often bought by members of the wealthy nobility to dispose of undesirables. This warrant caused Voltaire to be imprisoned in the Bastille without a trial and without an opportunity to defend himself. Fearing an indefinite prison sentence, Voltaire suggested that he be exiled to England as an alternative punishment, which the French authorities accepted. This incident marked the beginning of Voltaire's attempts to reform the French judicial system.
Voltaire's exile in Great Britain lasted nearly three years, and his experiences there greatly influenced his thinking. He was intrigued by Britain's constitutional monarchy in contrast to the French absolute monarchy, and by the country's greater support of the freedoms of speech and religion." (from Wikipedia)