This sounds exactly how my sense of chronology works. I have to find time markers and work my way from those to arrive at when a related memory occurred. I'll f

This sounds exactly how my sense of chronology works. I have to find time markers and work my way from those to arrive at when a related memory occurred. I'll frequently reference photos that I happen to know has some obscure clue in it like a shirt a family member was wearing because I knew they had that shirt when I went to X event, which I still have a ticket stub memento for, therefor it was Y date. I always attributed this to being home schooled (really just kind of free-range unschooled) until I was 14. I feel like I'm missing a lot of date-significant markers like passing from one grade to the next that most people have.