In the early days of Olympic games, much of the world was a part of European colonies and the number of teams winning Olympic medals reflects this. Before the First World War, the maximal number of teams with a medal was 20. In the interwar period, the number grew to 32. Olympic games started becoming more diverse after the Second World War and especially after the end of colonialism. In London 2012, the number of teams winning a medal grew to 85.