As the Glasgow Games begin, Dr Joya Chatterji explores the history of the Commonwealth.
BBC Radio 4
2/5 Agony aunt Irma Kurtz talks to her Indian counterpart Bachi Kakaria about Indian agony.
Adam Hart on how insect and cell structure research is helping develop swarming robots
BBC World Service
3/6 Margaret Macmillan looks through accounts of the events leading up to the First World War.
Documentary version of Sean Borodale's poem set at a cattle market.
BBC Radio 3
Childhood Cancer: Is red tape stopping the development of new drug treatments?
The French President arrives on a state visit to Russia.
Zarghuna Kargar hears the stories of British and Afghan women widowed by the 13-year war.
Sean Street examines those moments where Radio forgets itself.
The Royal Navy fleet gathers for a review by the King.