Neil Oliver visits Reichskrone, the Imperial Crown of the Holy Roman Empire, in Vienna and discusses how Cnut the Great's attendance of the Holy Roman Emperor's coronation marks Viking culture becoming European.
Alan Davies and Marcus du Sautoy visit the UK's National Physical Laboratory, where Mark Oxborrow takes them through an experiment that demonstrates how prime numbers exist in nature, and the Riemann hypothesis.
In 1886 the Aboriginal Protection Board helps draft HalfCaste Act in Victoria, forcing Indigenous people off reserves and to assimilate with Europeans. As reserves close, Indigenous people are forcibly moved to Lake Tyres Mission.
Historian Hamish MaxwellStewart gives Neil Oliver a tour of the Port Arthur convict settlement, revealing the detailed records of prisoners, and visiting the panopticon prison and solitary confinement cells.