Melvyn Bragg examines how a dominant power can exert a cultural influence on its empire. Read more
Melvyn Bragg examines how a dominant power can exert a cultural influence on its empire.
Roy chats to author Catrin Collier whose new historical novel is about Owain Glyndwr.
Proving climate change: The Keeling curve
An American scientist began recording carbon dioxide levels in the atmosphere in 1958
Mexico City slashes car use
How Mexico City cut its dangerously high air pollution levels
St Michael's Primary and the Parkhead Forge
Pupils from around Scotland delve into local history and produce their own documentary.
The man who fed the world
Dr Norman Borlaug’s pioneering work on disease-resistant grains saved millions.