Some say Britain should be proud of its imperial past. Oxford academics say it's not so simple.
An anthropologist tells the story of how Columbus actually came close to falling into historical obscurity, until American hubris got in the way.
The disdain for human life that underpinned the British Empire has been brought home.
For the Barkindji people, the Darling River has been a symbol of Aboriginal survival since colonial times. Now, the once busy NSW town of Wilcannia is in danger of losing its water.
The leaders of Islamic State do not see their caliphate as an exercise in theocracy for its own sake, but as an attempt at post-colonial emancipation.