7-as early of 1450bc, the ancient egyptians had classified humans based on their skin colour. Linnaeus"s taxonomic classification placed humans into 4 separate categories. Linnaeus assigned behavioural and intellectual qualities to each group, with the least complimentary descriptions going to sub-saharan, dark-skinned africans. European ethnocentric view that europeans were superior to everyone else. Johann friedrich blmenback-german anatomist, classified humans into 5 races described by white, yellow, red, black, and brown. The categories on skin colour were arbitrary and that many traits including skin colour were discrete phenomena because their expression often over-lapped groups. Biological determinism-the concept that phenomena, including various aspects of behaviour (ex. Intelligence, values, morals) are governed by biological/genetic factors; the inaccurate association of various behavioural attributes with certain biological traits, such as skin colour. Cultural variations were believed to be inherited in the same way that biological differences are. Francis galton(darwin"s cousin) shared an increasingly common fear among the 19th century.