Stone circles and carvings, earthen effigies, crop circles, pictographs, and strange engravings have been discovered all over the world. These monuments to early civilizations, still shrouded in mystery and folklore, fascinate researchers and students of history.
Stone circles—Great Britain
Curiosities and wonders
Mysteries of Mind, Space and Time: The Unexplained. H.S. Stuttman, 1992.
EBSCO Magazine Article Summaries
Readers’ Guide to Periodical Literature
Questia, a part of Gale, Cengage Learning. www.questia.com
Publication information: Book title: 100 Research Topic Guides for Students. Contributors: Barbara Wood Borne - Author. Publisher: Greenwood Press. Place of publication: Westport, CT. Publication year: 1996. Page number: 20.
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