[color=yellow][b]ANSWER:[/b][/color] That's a really tough question, since while I have plenty of memories from before I was five, I have no sense of when they happened in correlation to each other.  Using some logic, however, I might potentially get it down to a few memories.

For example, I remember the time I slid head-first down an elephant slide in a church nursery during a Thanksgiving dinner, and a pin I was wearing ripped down the front of my chest (I still have the scar, it's almost three inches long).  However, I also remember being given the pin before going to the dinner, so while much less in significance, being given the pin was an earlier memory.

Another is a nightmare I had about a giant fish that could swim up waterfalls.  However, I remember waking up in a hammock, and I know that me and my siblings slept on mats on the floor before we had bunk-hammocks.  Therefor, I know that my incredibly simplistic and probably insignificant memory of standing in a room wall-to-wall in my many siblings' mats is older.

While I have no real way to tell whether the pin incident happened before or after standing in the room of mats, my guess is that the mats is my earlier memory.


[color=limegreen][b]QUESTION:[/b][/color] If you could create a completely new biome for earth, what would you make and why?  For the sake of this thought experiment, imagine that the laws of physics changed to make said biome possible, however the change doesn't impact anything else.