The clarity with which events that happened 6 years earlier can be recalled was estimated. The estimates are consistent with a gradual degradation rather than a precipitate decline of memory, and with the proposition that once an event cannot be recalled then it will remain inaccessible under similar conditions of cueing. Rare events are recalled well, suggesting that proactive interference has a strong influence on difficulty to recall. Vivid events are recalled well, also, but other dimensions such as importance of the event, its association with semantic knowledge, and the intensity of physical sensation are not related to recallability. Memory for the date of an event is poor, but for its time of day is good.