O: Every Saturday morning, these two guys would swing by my house and hand me an Atheism tract...
But, really, O: It took A LOT of independent studying (science, religion, Bible, etc) for me to realize that God wasn't real and that Christianity wasn't true.
I) I'm NBA (Natural Born Atheist). My whole family is a-theistic for at least 12 generations (researched so far - Sámi, Geatish ancestry)
In my early twenties I became an anti-theist after studying religious scriptures and religious history. I realized that religion and religious faith caused way too much damage to mankind, slowed down scientific progress and retarded social health. Still does!!
I think choice "I" is the closest to my situation. For more on this, view my short essay on the topic, here: