They have an index of all images. Maybe someone picked a random image (I don't see a Random button, but one could exist?) or happened to look at this index the

They have an index of all images. Maybe someone picked a random image (I don't see a Random button, but one could exist?) or happened to look at this index the day it was added, or just clicked through to 2002 looking for something nostalgic https://archive.org/details/image https://archive.org/details/image