MONAD
| Date | Clue |
|---|---|
| 2020-06-26 | Indivisible entity |
| 2018-05-05 | Single unit |
| 2015-10-17 | Unicellular organism |
| 2010-07-25 | Single-celled organism |
| 2002-11-05 | Single-celled creature |
| 2000-03-13 | Single unit |
| 1997-06-08 | Simple organism |
| 1996-10-16 | Single-celled organism |