Book excerpt: Machines, devices, and systems that have touched our lives, both intimately and for the public good, are often unheralded inventions that we take for granted or never even see. Fortunately, they claim landmark recognition by the American Society of Mechanical Engineers, which now makes these engineering marvels accessible to teachers and students, travelers, researchers, and the curious. The 135 historic mechanical engineering landmarks in this book represent the accomplishments of mechanical engineers over the past 250 years - from the steam engine of Thomas Newcomen (1712), which launched the Industrial Revolution, to the Saturn V rocket (1967). This roster of landmarks tells a magnificent story of people and places and of innovation and discovery.