I found it strange that I didn't know. I was an exceptionally bright and inquisitive child. My immediate response was to chalk it off to "just something I wasn't interested in". Then, I went home to my mom and dad.
That conversation is my earliest memory of knowing that I was adopted.
I was told that I was with them from birth; that my adoption was final by the time I was 6 months old; I was born in a home for "unwed" mothers; I was "chosen", "special"; they told me about how much they had wanted a child but couldn't have one; they told me how much it meant to them to have me in their life; they told me how much they loved me.
I didn't feel chosen or special. I just felt different.
30+ years later, I look back and I know that my life could have been very different. I made rash choices based on my feelings, but without any "real" knowledge of the circumstances of my birth.
I have spent my life being afraid to succede because if I did, I would lose my overt excuse for not having a child. I would have to admit my "subconscious" reason. And, I was unwilling to do that, even to myself.
She couldn't raise me in those times as an unwed mother. She wanted what was best for me... a good home, family, everything she couldn't give me. She made the hardest choice of her life... she gave me up for adoption.