"RUDE STONE MONUMENTS in All Countries; Their Age and Uses" by James Fergusson. 1872 1st edition; John Murray; London. Profusely illustrated with 234 illustrations. At the back of the book is a fold-out color map, and a 32-page publisher's catalog. The book is a global survey and analysis of ancient megalithic structures.  The term "rude stone monuments" refers to ancient structures built from large, unworked stones, commonly known today as megaliths. Fergusson examines these structures across multiple continents, including Britain, Ireland, Scandinavia, France, Spain, North Africa, the Mediterranean, Western Asia, India, and the Americas. He categorizes the monuments into distinct types:  Burial mounds; Single-chamber megalithic tombs; Stone circles like Stonehenge and Avebury; Standing stones and aligned stone rows. Written before modern archaeological dating methods (like radiocarbon dating), the book attempts to assign dates and cultural origins to structures that were largely mysterious to 19th-century science. Fergusson argued that many of these monumental stone circles and dolmens were erected primarily as battle trophies or commemorative memorials of specific historical events and victories rather than purely religious or astronomical observances. He tried to prove that most megalithic monuments were built relatively late in antiquity (often post-Roman or early medieval periods in certain regions) rather than deep in prehistoric times, a theory that was later largely superseded by modern archaeology.