4-573: Terra incognita is a Latin phrase meaning 'unknown land', describing regions that have not been mapped or documented. Terra incognita may also refer to: Terra incognita Terra incognita or terra ignota ( Latin "unknown land"; incognita is stressed on its second syllable in Latin, but with variation in pronunciation in English) is a term used in cartography for regions that have not been mapped or documented. The expression
8-724: Is believed to be first seen in Ptolemy 's Geography c. 150. The term was reintroduced in the 15th century from the rediscovery of Ptolemy's work during the Age of Discovery . The equivalent on French maps would be terres inconnues (plural form), and some English maps may show Parts Unknown . Similarly, uncharted or unknown seas would be labeled mare incognitum , Latin for "unknown sea". Popular belief holds that cartographers used to label such regions with " Here be dragons ". Although cartographers did claim that fantastic beasts (including large serpents) existed in remote corners of
12-543: The hypothesized continent Terra Australis Incognita ("The unknown land of the South"), as seen in the Theatrum Orbis Terrarum map by Abraham Ortelius (1570). During the 19th century, terra incognita disappeared from maps; both the coastlines and the inner parts of the continents became fully explored, even prior to the advent of aerial photography and satellite imagery in the 20th century. However,
16-631: The world and depicted such as decoration on their maps, only one known surviving map, the Hunt–Lenox Globe , in the collection of the New York Public Library , actually says "Here are dragons" (using the Latin form "HIC SVNT DRACONES"). However, ancient Roman and Medieval cartographers did use the phrase HIC SVNT LEONES ( Here are lions ) when denoting unknown territories on maps. Alternatively, 'terra incognita' may also refer to
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