A question about slavery i would like to ask ??

Why do most people with not all blame white people for slavery white Eurpeon peoples are blamed 100 percent for slavery. Did it ever accrue that Arabs Asian Indians and even Blacks slave traded just as much but hey the school history books will never tell you this unknown fact about the past will they ? People from the middle east parts of india asia europe black on black slave trades all kinds of evil things in the past went on from lots of races but the very funny thing about it all is only the white eurpeons are freaking blamed hmmm thats funny. And did you know slave trades still go on yes slavery still goes on today in 2010 its called black on black slavery in todays Africa i bet you did not know that but hey blame whitey for it all - RIGHT ???