Supermarkets have been around a long time. The first one opened in New York in the 1930s. England followed in the 40s and New Zealand and Australian followed each other in the 50s. They are operating in a continually changing environment and face challenges which they work to overcome. This week I look at the back story. What? How? Why? A peek behind the scenes at the One-Stop Shop which has become the centre of our lives.