When's The Farthest Back You Remember?

[IIIIITHE1IIIII]

For some time I believed that my oldest memory was pushing my three years older brother on a pushcart when I was two. But since I have video footage of that moment its hard to tell whether the memory is real or I just think I can remember it from watching the video.

So my oldest certain memory would be when I was five and got to the hospital to see my newborn sister for the first time.