Scientology Chronology - April 1969
| April 1, 1972 | Author Here Sues Scientologists | |
| April 1, 1972 | Making an Executive | |
| April 3, 1972 | Doing Work | |
| April 3, 1972 | Primary Rundown Note | |
| April 4, 1972 | Ethics | |
| April 4, 1972 | Ethics and Study Tech | |
| April 4, 1972 | Org Officers, Product Officers, Estos | |
| April 4, 1972 | Primary Rundown (Revised) | |
| April 6, 1972 | How to Find a Why on a Person and Handle | |
| April 6, 1972 | Product Correction | |
| April 7, 1972 | Auditor Administration | |
| April 7, 1972 | Expanded Dianetics and Word Clearing | |
| April 7, 1972 | Illness Breakthrough | |
| April 7, 1972 | Touch Assists, Correct Ones | |
| April 9, 1972 | Correct Danger Condition Handling | |
| April 10, 1972 | Pre-OTs Don't C/S | |
| April 12, 1972 | Handling Danger Conditions | |
| April 16, 1972 | PTS RD Correction List | |
| April 17, 1972 | C/Sing a PTS Rundown | |
| April 19, 1972 | "Quickie" Defined | |
| April 20, 1972 | Product Purpose and Why and W/C Error Correction | |
| April 20, 1972 | Suppressed PCs and PTS Tech | |
| April 24, 1972 | Auditor Recovery | |
| April 24, 1972 | Dones | |
| April 24, 1972 | Hatting the Product Officer of the Division | |
| April 24, 1972 | PTS Interviews | |
| April 26, 1972 | The Glib Student | |
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