Donald James Angus was born in Wisconsin and lived most of his life in Indianapolis, Indiana and Grand Haven, Michigan. He was self-educated and worked in the field of electrical engineering, specializing in electrical measuring and recording...
Gordon Olson, historian and researcher wrote a series of biographical essays for Grand Valley State College. Materials include taped and transcribed interviews, drafts of publications, copies of articles and personal and career related information...
Mexico; Photographs; Photography; Pyramids; Archaeological sites; Chichen Itza Site (Mexico); Indian architecture--Mexico--Puuc Region; Yucatan (Mexico : State)
Tzompantli or "skull platform" associated with the Toltec culture. This structure was most likely used for the storage of heads of captives or sacrificial victims.
