The Cosmic Prehistoric Ages of Mankind
GA 184
This short, three lecture series, given by Rudolf Steiner in late September of 1918 at Dornach, is entitled, The Polarity of Continuity and Change in Human Life. The Cosmic Prehistory of Humanity, published in German as, Die Polaritaet von Dauer und Entwicklung Im Menschenleben. Die kosmische Vorgeschichte der Menschheit. Translated by M. Cotterell
| I. | The Threefoldness of Space and the Unity of Time | September 20, 1918 |
| II. | Lucifer and Ahriman | September 21, 1918 |
| III. | Romanism and Freemasonry | September 22, 1918 |