In the series of modern scientific and technical discoveries, repeated and recognizable features of past achievements and discoveries made by our distant predecessors are often noticed. Ancient civilizations almost simultaneously generated a number of ideas that significantly changed the way of thinking and the standard of living of society. Today, scientists discover a lot of new things from the life of ancient peoples, receive and dispute new arguments in favor of who exactly belongs to the primacy of certain discoveries, who truly earned the right to be called the "cradle of civilization." The next book in the series tells about the 100 most famous technical and scientific achievements of antiquity.