Diary
A diary or journal was a form of personal log.

Colonel Stephen G. Richey made only one entry in his diary. It was a brief explanation of what he believed had happened to him and the rest of the crew of the Charybdis. ()

Sajen, a Suliban detained at the Tandaran Detention Complex 26 in the mid-22nd century, kept a journal. Travis Mayweather speculated that the journal might prove a valuable record of what had happened there one day, a thought Sajen dismissed. ()

Data was programmed with journals of Omicron Theta colonists, in the hope they would be useful to him developing. ()

Julian Bashir at one point gave his medical school diaries to Jadzia Dax, so she could better understand him. She considered keeping them when she believed him killed in 2370. ()

Felisa Howard kept a journal in which she wrote about her relation and erotic experiences with Ronin, despite never mentioning him to her family in letters. ()

Lwaxana Troi diligently kept a journal since before she was married, except for one peculiar seven year gap. One bad experience she mentioned was the fact that her daughter was not married yet. ()

Erin and Magnus Hansen kept extensive field notes about their expedition to find the Borg, including extensive journals. This data set was at one point referred to as the "Hansen diaries". ()

Alixus kept a diary of her experiences colonizing a planet in the Orellius system. ()

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