Stone choppers, eyed needles, camel saddles, chariots, and contraceptives: the past is paved with remarkable inventions. The latest book in this popular series takes us on an eye-opening and unusual journey through early human innovationsùsome fundamental and others intriguing or bizarre. An international team of scientists, archaeologists, and historians reveals seventy of the most extraordinary inventions, from two-and-a-half million years ago up to the early medieval period.