What is the ethnic peoples tree?
A hierachical structure developed by Patrick Johnstone to classify people groups according to their culture. It is a four level tree structure starting with 16 Affinity Blocs, branching to 251 People Clusters, then to 9,819 People Groups and finally to 16,344 Peoples-by-Country. For an interactive diagram of the ethnic peoples tree, click here. Click here to read Patrick Johnstone’s article about Affinity Blocs and People Clusters.