Crop circles, definition and study. A-Z index of Cognitio. The crop circles, or agroglifi, are areas of cereal fields, or of similar cultivations, in which the plants appear flattened uniformly, thus forming various geometric figures (sometimes referred to as “pictograms”) clearly visible from…
Crystal skull, definition and study. A-Z index of Cognitio. A crystal skull is a representation of a human skull made from blocks of transparent quartz crystal. Some of these artifacts were declared pre-Columbian Mesoamerican archaeological finds from their alleged discoverers. None of the…
Christopher Columbus, and the sightings of light of 1492. Original article by Alessandro Brizzi. Christopher Columbus was an Italian navigator and explorer, a citizen of the Republic of Genoa first and subject of the Kingdom of Castile then, famous above all for his…
Egyptian hieroglyphs, definition and study. A-Z index of Cognitio. The Egyptian hieroglyphics are the carved signs that make up the monumental writing system used by the ancient Egyptians, which combines ideographic, syllabic and alphabetic elements. The use of this type of writing was…
Pisco, definition and study. A-Z index of Cognitio. Pisco is a city in central-southern Peru, the capital of the homonymous district and province of the Ica region in Peru. Founded in 1640 Important viticulture center, it was severely damaged by the earthquake of…
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