The Driving Force of Spiritual Powers in World History CW 222, seven lectures by Rudolf Steiner. Given in Dornach, from the 11th to the 23rd of March 1923. Lecture 3 translated by Johanna Collis. All the other six translated by Dorothy Osmond.
1. Lecture 1: (March 11, 1923 Dornach)
2. Lecture 2: (March 12, 1923 Dornach)
3. Lecture 3: (March 16, 1923 Dornach)
4. Lecture 4: (March 17, 1923 Dornach)
5. Lecture 5: (March 18, 1923 Dornach)