1713
| 5 October: birth of Denis Diderot at Langres, first child of Didier Diderot (1675–1759), a master cutler, and Angélique Vigneron (1677–1748), a tanner’s daughter. There followed Denise (1715–97), Catherine (1716–18), Catherine (II) (171935), Angélique (1720–48), who took the veil and died mad, and Didier-Pierre (1722–87), a strict churchman who could not tolerate his brother’s atheism.
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1723
| Enters the Jesuit college at Langres.
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1726
| 22 August: receives the tonsure, the first step towards an ecclesiastical career.
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1728
| Autumn: moves to Paris to continue his education at the Collège Louis-le-Grand, the Jansenist Collège d’Harcourt, and the Collège de Beauvais.
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1732
| 2 September: Master of Arts.
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1735
| 6 August: awarded a bachelor’s degree in theology but, after applying unsuccessfully for a living, abandons his plans for a career in the Church and takes up law, with the reluctant approval of his father.
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1737
| Abandons law and makes a meagre living as a private tutor, translator, and supplier of sermons to the clergy. Frère Ange, at Diderot’s father’s request, keeps an eye on him.
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1741
| Contemplates entering the seminary of Saint-Sulpice in Paris, but falls in love with Antoinette Champion (1710–96).
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1742
| Meets Jean-Jacques Rousseau.
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1743
| January: His father refuses to allow him to marry Antoinette and has him detained in a monastery at Langres, from which he escapes a month later. 6 November: marries Antoinette secretly in Paris. Publication of his translation of Temple Stanyan’s History of Greece .
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1744
| Birth of Angélique, who lives only a few weeks. Meets Condillac and begins following a course of lectures in surgery.
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1745
| Translates Shaftesbury’s Inquiry concerning Virtue, or Merit .
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1746
| Beginning of a liaison with Mme de Puisieux which lasts until 1751. Invited by the publisher Le Breton to translate Ephraim Chambers’s Cyclopaedia (1728). Meets d’Alembert. June: publishes Philosophical Thoughts (Pensées philosophiques ) anonymously; it is banned in July. Birth of François-Jacques-Denis. Ordination of Didier-Pierre Diderot.
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1747
| June: denounced by the curé of Saint-Médard as ‘a most dangerous man’, he is watched by the police. 16 October: becomes joint director, with D’Alembert, of the Encyclopaedia (Encyclopédie ).
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1748
| Publication of his first novel, The Indiscreet Jewels (Les Bijoux indiscrets ). His sister Angélique dies in her convent. October: death of his mother.
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1749
| 24 July–3 November: imprisoned at the Château de Vincennes for publishing the Letter on the Blind (Lettre sur les aveugles ). There he is visited by Rousseau. On his release, he meets d’Holbach and Grimm.
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1750
| June: death of François-Jacques-Denis. October: birth of Denis-Laurent, who dies in December. Distribution of the Prospectus of the Encyclopaedia .
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1751
| 18 February: Letter on the Deaf and Dumb (Lettre sur les sourds et muets ). 1 July: publication of volume i of the Encyclopaedia .
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1752
| January: volume ii of the Encyclopaedia which, together with volume i, is banned by the Royal Council. The Prades affair brings Diderot into conflict with the authorities. Police raid his house. He entrusts other manuscripts to Malesherbes, the government minister in charge of the book trade, for safekeeping.
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1753
| November: volume iii of the Encyclopaedia . 2 September: birth of Marie-Angélique, his fourth and only surviving child. December: Thoughts on the Interpretation of Nature (Pensées sur l’interprétation de la nature ). Not wishing to provoke the authorities, he publishes no more radical works until 1778.
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1754
| Volume iv of the Encyclopaedia . Begins following a course of chemistry lectures.
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1755
| Volume v of the Encyclopaedia . Moves to the rue Taranne, where he lives until shortly before his death. First of many contributions appear in Grimm’s Literary Correspondence (Correspondance littéraire ). July: meets Sophie Volland (1716–84), who may have been his mistress for a time, and with whom he corresponded regularly for many years.
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1756
| May: volume vi of the Encyclopaedia . 29 June: Diderot’s letter to Landois on determinism.
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1757
| February: publication of the play The Natural Son (Le Fils naturel ) and the Conversations about ‘The Natural Son’ (Entretiens sur le Fils naturel ), a discussion of the play and of Diderot’s views on drama. March: beginning of the quarrel with Rousseau. November: volume vii of the Encyclopaedia .
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1758
| D’Alembert states his intention of withdrawing from the Encyclopaedia . October: Diderot breaks with Rousseau. November: the play The Father of the Family (Le Père de famille ) and the Discourse on Dramatic Poetry (Discours sur la poésie dramatique ).
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1759
| March: the permission to print the Encyclopaedia is withdrawn. 3 June: death of his father. September: the Encyclopaedia is condemned by Rome. Writes the first of his nine Salons (detailed accounts of the major art exhibitions in Paris, the last completed in 1781) for the Literary Correspondence .
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1760
| February–May: correspondence with the Marquis de Croismare, which becomes the starting point for The Nun (La Religieuse ). 2 May: first performance of Palissot’s satirical play Les Philosophes , which attacks him and the other leading philosophes.
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1761
| February: The Father of the Family is performed in Paris. Writes the Eulogy of Richardson (Éloge de Richardson ), published in 1762. April (?): meets Jean-François Rameau, nephew of the composer. September: revises the last volumes of the Encyclopaedia .
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1762
| 6 August: the Parlement orders the expulsion of the Jesuits. Works on Rameau’s Nephew (Le Neveu de Rameau ). D’Holbach introduces him to Laurence Sterne, who promises to send him the first six volumes of Tristram Shandy . The first of the eleven volumes of plates which accompany the Encyclopaedia appears: the last is published in 1772.
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1763
| Quarrels with his brother who, since 1745, had considered him the Antichrist. Meets David Hume.
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1764
| October: meets David Garrick. November: is furious to learn that his publisher Le Breton has secretly censored articles of the Encyclopaedia .
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1765
| Reconciled with D’Alembert, but Rousseau rejects his overtures. 1 May: Louis XV grants him permission to sell his library to Catherine II of Russia for 15,000 livres and an annual pension of 1,000 livres. She allows him to use it during his lifetime: it will revert to her only on his death. Autumn: reads volume viii of Tristram Shandy which contains the story of Trim’s knee. Resumes, or more probably begins writing Jacques the Fatalist (Jacques le fataliste ).
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1766
| Subscribers receive the remaining volumes (viii–xvii) of the Encyclopaedia .
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1767
| Diderot’s brother appointed canon of the cathedral at Langres.
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1769
| August–September: writes D’Alembert’s Dream (Le Rêve de D’Alembert ). Falls in love with Mme de Maux.
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1770
| Writes a number of tales and dialogues, including The Two Friends from Bourbonne (Les Deux Amis de Bourbonne ).
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1771
| Writes the Philosophical Principles Concerning Matter and Movement (Principes philosophiques sur la matière et le mouvement ) and reads a version of Jacques the Fatalist to a friend. 26 September: The Natural Son staged in Paris. Diderot withdraws it after one performance.
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1772
| March: On Women (Sur les femmes ). September: finishes two stories, This is Not a Story (Ceci n’est pas un conte ) and Madame de la Carlière . Marriage of Angélique to an ironmaster, Caroillon de Vandeul.
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1773
| 11 June: leaves Paris for Russia. 15 June–20 August: stays at The Hague, where he revises Rameau’s Nephew, Jacques the Fatalist , and an article which would be published as The Paradox of the Actor (Le Paradoxe sur le comédien ). Writes the First Satire . 8 October: arrives at St Petersburg.
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1774
| In Russia, he works on various writings dealing with politics, physiology, and materialism. 5 March: leaves St Petersburg, reaching The Hague on 5 April, where he remains until 15 September. Arrives in Paris on 21 October.
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1776
| A dialogue on atheism, the Conversation of a Philosopher with the Maréchale de *** (Entretien d’un philosophe avec la Maréchale de ***), appears in Métra’s Secret Correspondence (Correspondance secrète ).
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1777
| Continues his collaboration (1772–80) with the abbé Raynal in the History of the Two Indies (Histoire des deux Indes ), writes a comedy, Is he Good, is he Wicked? (Est il bon, est il méchant ?), and further revises Rameau’s Nephew and Jacques the Fatalist .
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1778
| October: publication of the First Satire in the Literary Correspondence . November–June 1780: publication in serial form of Jacques the Fatalist in the Literary Correspondence .
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1780
| Revises The Nun , also serialized in the Literary Correspondence , and expands his Essay on the Reigns of Claudius and Nero (Essai sur les règnes de Claude et de Néron , 1778), his major political work.
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1781
| July: reads Jacques the Fatalist to his wife and probably makes further additions to the text.
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1783
| 29 October: death of D’Alembert.
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1784
| 22 February: death of Sophie Volland. The news is kept from Diderot, who is recovering from an attack of apoplexy. 15 July: moves to the rue de Richelieu. 31 July: death of Diderot. He is buried (1 August) in the church of Saint-Roch. 9 September: Catherine II sends 1,000 roubles to Mme Diderot.
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1785
| Friedrich Schiller translates the Mme de la Pommeraye episode of Jacques the Fatalist in Die Rheinische Thalia . This text is translated back into French by J.-P. Doray de Langrais in 1792 as Strange Case of a Woman’s Vengeance (Exemple singulier de la vengeance d’une femme ). 5 November: Diderot’s library and manuscripts arrive in St Petersburg.
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1792
| Jacques the Fatalist translated into German by Christlob Mylius.
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1796
| Publication of The Nun and Jacques the Fatalist .
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1805
| Goethe publishes his translation of Rameau’s Nephew .
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Jean-Philippe Rameau walking in the gardens of the Palais-Royal.
C. L. Carmontelle, etching
(Jean-Philippe sometimes signed as Jean-Baptiste;
the year of birth given is incorrect.)