The New York Journal of Medicine published this table in 1850 regarding the brain sizes of different races.  Looking at this table, it is clear that the white doctors who created it considered whiteness to be dependent upon the supposed biologic superiority of the white race.  Their ideas of superiority are displayed as they claim that white people (the “modern caucasion group”) have the largest brain size.  Today, we know that these findings are untrue, there is no significant difference in brain sizes between races, however these ideas were very important to Victorian society.  Research like this led to the idea that whiteness was determined by the biological superiority of the white race.  In this case, the size of the brain, which is often associated with intelligence.