1936: Eighteen lessons to teachers
19 documents
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April 8, 1936: Lessons to teachers: Lesson I
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April 11, 1936: Lessons to teachers: Lesson II
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April 13, 1936: Lessons to teachers: Lesson III
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April 15, 1936: Lessons to teachers: Lesson IV
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April 17, 1936: Notes taken during conversation
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April 25, 1936: Lessons to teachers: Lesson V
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May 1, 1936: Lessons to teachers: Lesson VI
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May 5, 1936: Lessons to teachers: Lesson VII
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May 7, 1936: Lessons to teachers: Lesson VIII
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May 10, 1936: Lessons to teachers: Lesson IX
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May 10, 1936: Lessons to teachers: Lesson X
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May 14, 1936: Lessons to teachers: Lesson XI