| 2021-08-30 | Letters between nus and omicrons |
| 2021-01-07 | They follow the nus |
| 2020-12-07 | Letters after nus |
| 2019-12-15 | Some fraternity row letters |
| 2019-09-11 | Omicrons' predecessors |
| 2019-03-09 | Sorority letters |
| 2017-11-23 | They follow the nus |
| 2014-10-25 | Characters from Sophocles |
| 2013-10-27 | Greek characters |
| 2013-01-24 | Fraternity letters |
| 2011-11-13 | Sorority letters |
| 2011-10-26 | Followers of nus |
| 2009-05-24 | Greek consonants |
| 2007-07-07 | Sorority letters |
| 2004-04-14 | Fraternity letters |
| 2003-04-27 | Fraternity letters |
| 2002-07-04 | Greek letters |
| 2001-03-08 | Greek letters |
| 1999-05-20 | Greek letters |
| 1998-08-27 | Omicrons' predecessors |
| 1998-02-25 | Letters from 12-Down |
| 1998-01-04 | Greek letters |
| 1997-11-30 | Fraternity letters |
| 1996-01-09 | Letters from Xanthippe |
| 1995-05-01 | Greek letters |
| 1994-12-25 | Greek consonants |
| 1994-04-16 | Fraternity letters |
| 1994-03-07 | Omicrons' predecessors |