The Evolution of the World and of Humanity 1923, a cycle of 13 lectures by Rudolf Steiner. Given in Penmaenmawr August 18 - 31, (CW 227).
1. Lecture 1: First Steps toward Imaginative Knowledge (August 19, 1923)
2. Lecture 2: Inspiration and Intuition (August 20, 1923)
3. Lecture 3: Initiation-Knowledge - New and Old (August 21, 1923)
4. Lecture 4: Dream Life (August 22, 1923)
5. Lecture 5: The Relation of Man to the Three Worlds (August 23, 1923)
6. Lecture 6: The Ruling of Spirit in Nature (August 24, 1923)
7. Lecture 7: The Interplay of various Worlds (August 25, 1923)
8. Lecture 8: During Sleep and after Death (August 26, 1923)
9. Lecture 9: Experiences between Death and Rebirth (August 27, 1923)
10. Lecture 10: Man's Life after Death in the Spiritual Cosmos (August 28, 1923)
11. Lecture 11: Experience of the World's Past (August 29, 1923)
12. Lecture 12: The Evolution of the World in connection with the Evolution of Man (August 30, 1923)
13. Lecture 13: The Entry of Man into the Era of Freedom (August 31, 1923)
14. Extract from Concluding Address (August 31, 1923) [evening]