| 1818 5th May | Karl Marx born in Trier ( Trèves). |
| 1835 | College Finals in Trier ( Trèves). |
| 1835-6 | Student of Jurisprudence at Bonn University. Engagement to Jenny von Westphalen. |
| 1836-41 | Student of Jurisprudence, History and Philosophy at Berlin University. Beginning of his Hegelian studies. Joins Young Hegelian circle: Bruno Bauer, Rutenberg, Ed. Meyen and Köppen. First literary attempts (Poems, etc.). |
| 1838 | Death of Marx's Father. |
| 1841 | Graduation at Jena University. |
| 1842-3 | Contributor to and later editor of the Rheinische Zeitung in Cologne. Collaboration with Arnold Ruge. |
| 1843 | Marriage to Jenny von Westphalen. |
| 1843-5 | Stay in Paris. |
| 1844 | Issues Deutsch-Franzèsische Jahrbücher together with Ruge. Contributor to the Paris Vorwärts ( H. Börnstein and Bernays). Studies French socialism and communism. Association with Heinrich Heine, Proudhon and others. First meeting with Friedrich Engels. Economic and philosophical studies. |
| 1845 | Expulsion from Paris by Guizot at the instance of the Prussian government. |
| 1845-8 | Stay in Brussels. Collaboration with Engels: The Holy Family and the German Ideology ( Polemic with the Hegelians, Feuerbach, Stirner and the "True Socialists"). Contributions to the Gesellschafts- spiegel, the Westphälisches Dampfboot and the Deutsche Brüsseler Zeitung. |
| 1847 | Meeting and Discussion with Weitling. Polemic with Proudhon: The Poetry of Philosophy. Joins the Communist League. Lectures on Protection, Free Trade, Wage-Labour and Capital. Visits London for conference of the Communist League. Instructed with Engels to draft communist manifesto. |
| 1848 | Publication of The Communist Manifesto. Expulsion from Brussels. Reorganization of the Com- munist League ( Engels, Schapper, Wolff, Stephan Born and others). |
| 1848-9 | In Cologne as the editor of the Neue Rheinische Zeitung. Meeting with Lassalle and Freiligrath. Visits Vienna: Lectures to the Vienna Workers Association. |
| 1849 | Marx acquitted by a jury in Cologne charged with |