Here's a 40-minute radio discussion about this question: http://www.bbc.co.uk/radio4/history/inourtime/inourtime_20061019.shtml http://www.bbc.co.uk/radio4/hist

Here's a 40-minute radio discussion about this question: http://www.bbc.co.uk/radio4/history/inourtime/inourtime_20061019.shtml http://www.bbc.co.uk/radio4/history/inourtime/inourtime_2006... [it's In Our Time, hence contains a decent amount of content]