Beginning
In the beginning, a child was born. It's never a question of birth since being born is taken for granted. Without birth, there could be no child or so goes the the rationale. But is birth really the start of life? Life is the collecting of experiences. Thus, birth only truly happens when a child is able to remember experiences. Some children start remembering early, other children take a bit longer.
For Aventine, birth occurred exactly 3 years, 116 days from the emerging into the world, blood soaked and oblivious to the changes occurring. Aventine insists, yet there is no record validating or invalidating this claim; and, Aventine couldn't remember the days up until that point. Thus, take it with a grain of salt.