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1/3 Will Gompertz hears about the joy of uncovering apparently lost masterpieces.
BBC Radio 4
Neil MacGregor visits Kaliningrad, now in Russia but formerly the German city Konigsberg.
Neil MacGregor charts the career of Otto von Bismarck, known as the Iron Chancellor.
Barrister Harry Potter on John Stuart Mill's ideas about individual freedom and the state.
This act by the white minority government in 1965, led to a decade of war
BBC World Service
Investigating global developments, issues and affairs.
1/4 In the year Richard III of England dies in battle, Ivan the Great seizes the city of Tver.
Angie Hobbs on Isaiah Berlin's distinction between positive and negative freedom.
In the 1990s Saddam Hussein oversaw the destruction of southern Iraq's ancient marshes
Beavers are busy saving us money on flood defences, but is this a good way to view nature?