"Day 1 - I begin this record, still in the hope that the great work we have undertaken here might one day be of scientific value, despite the chaos which has ensued in the six hours previous. My aim is to remain secure, until what help there may be arrives, and to that end I have barricaded myself into a workshop area in the abandoned area of the mine. I hope that the meagre food rations here will keep me alive, and that those I hide form will not jeopardise that. Perhaps this mine really is cursed: its almost precisely thirty years since the incident that brought us here, and now, thirty years on, fate has struck again."
January 1, 1970
https://en.wikiquote.org/wiki/Penumbra_(video_game_series)