India's nine day tea strike and the birth of the Excel spreadsheet

Max Pearson presents a collection of the week’s Witness History episodes.

Tea expert Sabita Banerji talks about the history of tea in India. We look back at how women teapickers in 2015 fought for justice - and improved the lives of thousands of tea plantation workers.

We hear the story of a famous photo of American president John F Kennedy working at his desk in the White House - with his cheeky young son underneath.

Also, from 1985 one of the most notorious killings from the apartheid era in South Africa of the men wh...