The radio encyclopaedia answering listeners' questions, big and small
World Service,·256 episodes
A look back at the programme’s humble beginnings as it celebrates 40 years on the airwaves
Sexism, racism and discrimination against disabled people at work in Africa
Postmark Africa celebrates its inaugural FM radio broadcast in Nigeria
Serbia’s national identity is rooted in the notion that its people always lose
Why NATO planes bombed the Chinese embassy in Belgrade
Why death was more important than life in Ancient Egypt
How Heathrow Air traffic controllers prevent mid-air collisions
How Africa’s volcanoes are formed and what makes them erupt
Could African tobacco companies be prosecuted by people with smoking-related illnesses?
How the Romans inspired the modern postal service
Martin Redfern explains the difference between meteors and meteorites
The exile of former Republic of the Congo President Pascal Lissouba
How do hot air balloons avoid collisions with aeroplanes?
Why China and Russia regularly oppose the US in high-profile international matters
How scientists identified three million-year-old human remains in South Africa
How the Nigerian legal system prevents women from reporting cases of rape
The relationship between General Abdulsalami Abubakar and the late General Sani Abacha
Dissecting the relationship between the US and former Liberian President Charles Taylor
Is man responsible for the decisions he makes? Special edition on religion
How space and time is measured from Greenwich Observatory in London
Why wasn’t US President Bill Clinton brought to trial following the Monica Lewinsky affair
Techniques and drill terms from the parade ground
Anti-colonial and self-sufficient, the US chose not to join Europe’s scramble for Africa
How the Richter Scale is used to measure the intensity of earthquakes
What’s the best way to source clean water from the environment?
Did Iraq hide evidence of its biological warfare from UN weapons inspectors?
How Germany’s WWII defeat led to Swiss banks enacting a “Law of Secrecyâ€
Why do some people stutter – and how can you control a stammer?
Can chewing the kola nut keep you up all night?
The impeachment of US President Bill Clinton over the Monica Lewinsky affair
