In the schools I've worked in the children have been divided into 'houses' for the sake of sports day, house points etc, usually named after colours. My all girls school classes were named after females in history, Nightingale, Darling, St Joan can't remember the others. A lot of primary schools now are naming the classes instead of just boring 1C , one school I worked in the classes were named after breeds of sheep, nothing too divisive there. My grandsons classes are named after animals. How long before 'fox' is banned for not being vegan? :) Sorry!