Example image of eyePlorer eyePlorer map for 'Baron d'Holbach': Age of Enlightenment Author Encyclopedia France Germany Philosophy Edesheim Landau Palatinate (region) Paris Salon (gathering) Atheism The System of Nature Married and maiden names Prince-Bishop Wine Friedrich Melchior, Baron von Grimm Encyclopédie André Morellet Charles Marie de La Condamine Claude Adrien Helvétius Denis Diderot Ferdinando Galiani Guillaume Thomas François Raynal Jacques-André Naigeon Jean le Rond d'Alembert Jean-François Marmontel Jean-Jacques Rousseau Marquis de Condorcet Turgot Étienne Bonnot de Condillac Adam Smith David Hume Edward Gibbon Horace Walpole, 4th Earl of Orford John Wilkes Julie, or the New Heloise Natural philosophy Amsterdam French materialism Christianity Deism Voltaire French Academy of Sciences Jean-Baptiste de Mirabaud A priori and a posteriori Deity Morality Scripture House of Bourbon