Yes, my DD also enjoyed memorization as a young toddler. She learned most of the countries in the world and a huge array of flags at that age. I was reminded of this when you talked about your bedtime ritual. We used to have her find 8 countries and 6 flags (or something) as part of the bedtime routine. Interestingly, she probably knew more world geography at 2 than she does now at 9. (I'm sure she could pick it up if she were motivated to, though; she learned the 50 states and capitals effortlessly.)