ENGRAM
| Date | Clue |
|---|---|
| 2026-04-10 | "Storage unit" of memory in the brain |
| 2018-05-27 | Memory trace |
| 2015-05-07 | Memory imprint |
| 2012-06-05 | Memory trace |
| 2007-05-13 | Memory trace |
| 2007-04-27 | Memory imprint |
| 2006-09-17 | Memory trace |
| 2006-09-12 | Memory trace |
| 2003-03-08 | Memory trace |
| 2002-05-17 | Memory trace |
| 1998-10-09 | Persistence of memory concept |
| 1995-03-08 | Persistence of memory |