By Pauline McLean
BBC Scotland arts correspondent
By Matthew Kenyon
Traditionally an idea in legal study, it is now a source of fierce political debate in the US.
Three white men have been found guilty of killing a black jogger last year.
The legacies of slavery continue to connect people and places around the world, as Jen Reid discovered when she started researching her family history.
By Dan Roan
BBC sports editor
A series of British sports, beyond football and cricket, are name-checked for having racism issues.
Muhammed Aziz - who's now 83 - and the late Khalil Islam were convicted in 1966 - after a trial in which authorities withheld evidence favourable to the defence.
The cricketer hopes his claims about racism in the sport inspire others to come forward.