| 2023-08-20 18:29:01 | sensenstahl | Added link https://files.scene.org/browse/parties/2009/jhcon09/ |
| 2014-02-15 16:15:44 | menace | Set start date to 11 December 2009, end date to 13 December 2009 |
| 2013-12-31 19:28:34 | factor6 | Added competition JHCon 2009 ZX81 1K intro compo |
| 2013-12-31 19:27:26 | factor6 | Set invitations to JHCon 2009 Invitation |
| 2013-12-31 19:26:31 | factor6 | Added party 'JHCon 2009' |