i have brown hair but i dye it black
Brown hair is actually the second most popular hair color after black! My hair is brown too.
i didn't know that i thought blond hair would be second most popular after black
Maybe because brown hair has so much variation. It can range from a light brown to nearly black. That's pretty broad I think.
yes, i agree! 
I never realized until recently that brown hair strands are actually thicker than those of fair hair. I thought they were all the same!
that's interesting. i learned something new today :) do you know any other cool facts?
People with brown hair are known as brunette. That term came from the French word brunet! 
oh that's where it came from, i always wondered
"Brun" is actually still used in Scotland, especially in rural areas. I thought that was really interesting!