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The Polarity of Duration
and Development in Human Life
The Cosmic Prehistory of Humankind
GA 184

No. Lecture Title Book Title Date City
1. Lecture I The Bridge between the Ideal and the Real 6 Sep 1918 Dornach
2. Lecture II The Bridge between the Ideal and the Real 7 Sep 1918 Dornach
7. The Threefoldness of Space and the Unity of Time The Cosmic Prehistoric Ages of Mankind 20 Sep 1918 Dornach
8. Lucifer and Ahriman The Cosmic Prehistoric Ages of Mankind 21 Sep 1918 Dornach
9. Romanism and Freemasonry The Cosmic Prehistoric Ages of Mankind 22 Sep 1918 Dornach
1. First Lecture The Science of Human Development 6 Sep 1918 Dornach
2. Second Lecture The Science of Human Development 7 Sep 1918 Dornach
3. Third Lecture The Science of Human Development 8 Sep 1918 Dornach
4. Fourth Lecture The Science of Human Development 13 Sep 1918 Dornach
5. Fifth Lecture The Science of Human Development 14 Sep 1918 Dornach
6. Sixth Lecture The Science of Human Development 15 Sep 1918 Dornach
7. Seventh Lecture The Science of Human Development 20 Sep 1918 Dornach
8. Eighth Lecture The Science of Human Development 21 Sep 1918 Dornach
9. Ninth Lecture The Science of Human Development 22 Sep 1918 Dornach
10. Tenth Lecture The Science of Human Development 4 Oct 1918 Dornach
11. Eleventh Lecture The Science of Human Development 5 Oct 1918 Dornach
12. Twelfth Lecture The Science of Human Development 6 Oct 1918 Dornach
13. Thirteenth Lecture The Science of Human Development 11 Oct 1918 Dornach
14. Fourteenth Lecture The Science of Human Development 12 Oct 1918 Dornach
15. Fifteenth Lecture The Science of Human Development 13 Oct 1918 Dornach
10. Lecture I Three Streams in Human Evolution 4 Oct 1918 Dornach
11. Lecture II Three Streams in Human Evolution 5 Oct 1918 Dornach
12. Lecture III Three Streams in Human Evolution 6 Oct 1918 Dornach
13. Lecture IV Three Streams in Human Evolution 11 Oct 1918 Dornach
14. Lecture V Three Streams in Human Evolution 12 Oct 1918 Dornach
15. Lecture VI Three Streams in Human Evolution 13 Oct 1918 Dornach

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