| [Classics] Socialism and Religion | 16 December 1905 | V.I. Lenin |
| Lenin on May Day | 13 May 1904 | V.I. Lenin |
| May Greetings from Stuttgart | 12 May 1900 | Clara Zetkin |
| The Workers’ International Festival | 01 May 1899 | Clara Zetkin |
| Only in Conjunction With the Proletarian Woman Will Socialism Be Victorious | 16 October 1896 | Clara Zetkin |
