11:50Witness HistoryPakistan EducationBBC World Service Duration: 10 minutes Thu 6th May 2010, 11:50 on BBC World Service OnlineAvailable for over a yearListen nowMajor Geoffrey Langlands has worked as a teacher in Pakistan for more than 50 years. He is still teaching at the age of 92. He tells Owen Bennett-Jones his story.GenresNewsFormatsMagazines & ReviewsBrandWitness History Source: BBC Online