In this second edition of Nasca & Easter Island- An ancient Global Plan Revealed (2014), significant advances in the original research are presented. Also, a scheme of broader implications based on geographic and cartographic data is assembled which shows many of the monuments of antiquity were designed and placed to serve as Timekeepers. "The new data shows that behind the archaeological record stands a civilization capable to accurately measure the earth's planetary motion. This ancient civilization lived on earth, perhaps as early as 44k years ago. They measured the earth's axis tilt and left a record of this knowledge. The value of the obliquity angle of the earth's axis was enshrined in lines, structures and glyphs at many locations the world over, most of them remote from each other, but connected through their geometries: The Machu Picchu Citadel was built to reflect this knowledge. The technological acumen of the architects of these monuments is further revealed in the encoding of the earth's seasonal cycles, at many sites and monuments such as: Gobekli Tepe, Teotihuacan, Stonehenge, Kalasasaya and the Medicine Wheel, among others. These monuments were placed as astronomical geodetic markers at pre determined locations on earth. The geographical sites and the structures' azimuth alignment at the site were astronomically aligned to encode the angle of the sun's circle of illumination on earth at the given latitude. The sites' longitudes were selected to set the distance between the circles of illumination accurately spaced around the Equator, resulting in a global clock which measured the mean 24 hour solar day. They mastered the science of time. MEASURING TIME IS THE ANCIENTS' GREAT ACHIEVEMENT & LEGACY"