| 2021-01-13 02:53:29 | dipswitch | Added Badger as organiser of Horizon & Heptagon Meeting 1988 |
| 2021-01-13 02:52:35 | dipswitch | Added Heptagon as organiser of Horizon & Heptagon Meeting 1988 |
| 2021-01-13 02:52:25 | dipswitch | Added Horizon as organiser of Horizon & Heptagon Meeting 1988 |
| 2014-08-30 20:07:02 | dipswitch | Edited notes |
| 2014-08-30 20:06:49 | dipswitch | Edited notes |
| 2014-08-30 20:05:31 | dipswitch | Added party 'Horizon & Heptagon Meeting 1988' |