I have an excellent visual memory. I might not remember what was said or decided at a particular time, but I can tell you that it was a sunny day, a red car went passed us, and you had something on your teeth - years and years later! I remember situations and feelings very easily, and if I go through every minute of that moment I MIGHT remember what was discussed - that is actually a very fun exercise by the way. I think my biggest problem is remembering speech - like spoken names and requests, I have to write it now, and THEN I will remember it... maybe, depending on how mindful I am at that moment.
But when it comes to history, I might confuse dates, people and situations. I love numbers, but I tend to memorise a number, find a mathematical pattern for it to remember it better, and then another number comes out. 5's and 7's are the worst to remember right, because 7 is 5+2, and I always make that connection since I learned maths in primary school, so you tell me 27 and I write 25.
I also feel like my memories are stored in folders, organised by year and month, a bit like a wall calendar, and all in sequence, this way I can tell you what year and month or time of the year an incident happened. Love it! I might not know what your name is and what you work with, but I know where we met and how that meeting went 