My oldest vivid memory is when I was about two years old on a playdate with a neighbor's kid, and I was flipping through an encyclopedia learning some of them big words. I turned to my friend and asked her if she could help me pronounce "pal-e-oon-tol-oh-guh-ist." She didn't know because she had never heard it either, and she couldn't read yet even though she was a year older than me. We then proceeded to organize a small pretend toy store.

My oldest construct memory is when I was running around the house at about nine months pointing at things and yelling out what they are. I've been told about it from people who knew me at that age, and while I don't exactly remember it, I can imagine myself from that little two-foot-tall viewpoint and see all the things I was pointing at like doorknobs and books and remember the layout of the house perfectly, so it may as well be a memory.