Could you provide a reference for this "age of amnesia" ? I've heard many people claim that it's not possible to remember things before age 6. But I personally have lots of memories from ages 2 to 4 (these memories are very easy for me to accurately date, because I lived in different countries during these years). And I would definitely categorize those memories as "long term": I remember places, visits of relatives, toys I had, play dates and birthday celebrations, bike rides, etc...