I have a large number of memories from age 2 and going forward. I can even remember the details of conversations I heard and the physical appearance, location and orientation of various objects that were in my environments, and can accurately recall the floor plans of places I lived in or visited. I can't recall a single thing prior to my second birthday, though. I'm age 37, presently.

I've met people who, if the subject of very early memories came up in conversation, thought it was completely normal as they have similar ones. I've talked to other people, though, who insist that I can't possibly be telling the truth, perhaps because they can't even imagine remembering anything that far back.