53 and a Half Things That Changed the World

Imagine life without music, buildings, clothes, books, engines or even speech! This is what the world would be like, without the 53 and 1/2  things 

that changed the course of history. From primitive discoveries such as fire and the wheel, to modern creations such as the jet engine and the internet – not forgetting the great inventing disasters – this book contains them all. And once you have read about the 53 things, find out which is the half – an invention which will change the lives of millions, but is still not fully completed.