my brother started reading when he was 18 months as well... :O
he was a pretty amazing baby, so i hear. he could say all his colors (including ones like aqua, fuschia, mauve, etc...) by the time he was 12 months old. he could do all the basic math operations by 3 years old (me too
). he showed that he could read simple words when he was 2. he was in the mall with my grandma and he was in a stroller, and he pointed at a sign nearby and he read out loud "watch your step", just as it was on the sign.
so it only makes sense that he's a math professor at michigan state now.
get 'em started early!