Looking backward (Edward Bellamy)

This is a book about a man of 1887, who turned out to be in 2000. It was actually written in 1887, and author Edward Bellamy predicts certain things, such as radio and credit cards. The main character discovered that all social class differences were erased, and there is a utopian society. He wonders how in the twenty-first century all kinds of music are available at the touch of a button. Credit card replaced the money. The author compares the 21st century and 19 in the novel.