Agathodaemon of Alexandria ( grc-gre, Ἀγαθοδαίμων Ἀλεξανδρεὺς, ''Agathodaímōn Alexandreùs'') was a

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

Hellenized Hellenization (other British spelling Hellenisation) or Hellenism is the adoption of Greek culture, religion, language and identity by non-Greeks. In the ancient period, colonization often led to the Hellenization of indigenous peoples; in th ...

cartographer Cartography (; from grc, χάρτης , "papyrus, sheet of paper, map"; and , "write") is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality (or an im ...

, presumably from

Alexandria Alexandria ( or ; ar, ٱلْإِسْكَنْدَرِيَّةُ ; grc-gre, Αλεξάνδρεια, Alexándria) is the second largest city in Egypt, and the largest city on the Mediterranean coast. Founded in by Alexander the Great, Alexandria ...

Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Mediter ...

, in

late Antiquity Late antiquity is the time of transition from classical antiquity to the Middle Ages, generally spanning the 3rd–7th century in Europe and adjacent areas bordering the Mediterranean Basin. The popularization of this periodization in English ha ...

, probably in the 2nd century A.D. Agathodaemon is mentioned in some of the earliest manuscripts of

Ptolemy Claudius Ptolemy (; grc-gre, Πτολεμαῖος, ; la, Claudius Ptolemaeus; AD) was a mathematician, astronomer, astrologer, geographer, and music theorist, who wrote about a dozen scientific treatises, three of which were of importanc ...

's ''Geography'': __NOTOC__

"From the eight books of geography of
Claudius Ptolemaeus Claudius Ptolemy (; grc-gre, Πτολεμαῖος, ; la, Claudius Ptolemaeus; AD) was a mathematician, astronomer, astrologer, geographer, and music theorist, who wrote about a dozen scientific treatises, three of which were of importanc ...
the whole habitable world Agathodaemon of
Alexandria Alexandria ( or ; ar, ٱلْإِسْكَنْدَرِيَّةُ ; grc-gre, Αλεξάνδρεια, Alexándria) is the second largest city in Egypt, and the largest city on the Mediterranean coast. Founded in by Alexander the Great, Alexandria ...
delineated."

The line appears in the running text of the ''Geography'' and not as a caption on the maps themselves. Since the inscriptions are the only surviving reference to him and these manuscripts only survive from the very late 13th century, the most that can be stated conclusively is that he lived sometime between the years AD 150 and 1300, although his classical name and his epithet—"the Alexandrian"—probably places him before that city's fall to the

Caliphate A caliphate or khilāfah ( ar, خِلَافَة, ) is an institution or public office under the leadership of an Islamic steward with the title of caliph (; ar, خَلِيفَة , ), a person considered a political-religious successor to th ...

in 641 and not contemporary with

Maximus Planudes Maximus Planudes ( grc-gre, Μάξιμος Πλανούδης, ''Máximos Planoúdēs''; ) was a Byzantine Greek monk, scholar, anthologist, translator, mathematician, grammarian and theologian at Constantinople. Through his translations from La ...

's reconstruction of the Ptolemaic atlas after 1295. In the ''Geography'', Ptolemy shows his familiarity with existing maps, complaining of the inaccuracies introduced by cartographers to Marinus of Tyre's work through his failure to provide proper accompanying data, a fault Ptolemy remedied by providing sample captions in his own books VII and VIII. In those sections, he explicitly mentions that his text was to be accompanied by maps constructed according to his principles.

Heeren Heeren is a village and a former municipality in the district of Stendal, in Saxony-Anhalt, Germany. Since 1 January 2010, it is part of the town Stendal,Dinse for his having been the transcriber of the original

papyrus Papyrus ( ) is a material similar to thick paper that was used in ancient times as a writing surface. It was made from the pith of the papyrus plant, '' Cyperus papyrus'', a wetland sedge. ''Papyrus'' (plural: ''papyri'') can also refer to a ...

scroll A scroll (from the Old French ''escroe'' or ''escroue''), also known as a roll, is a roll of papyrus, parchment, or paper containing writing. Structure A scroll is usually partitioned into pages, which are sometimes separate sheets of papyrus ...

s to

codices The codex (plural codices ) was the historical ancestor of the modern book. Instead of being composed of sheets of paper, it used sheets of vellum, papyrus, or other materials. The term ''codex'' is often used for ancient manuscript books, with ...

; and

Fischer Fischer is a German occupational surname, meaning fisherman. The name Fischer is the fourth most common German surname. The English version is Fisher. People with the surname A * Abraham Fischer (1850–1913) South African public official * Ad ...

for a strictly literal reading of the inscription, showing that differences in the early manuscripts imply Agathodaemon drafted the world map but not the regional maps. A major consideration is that the current form of Ptolemy's regional maps are done according to Marinus's

cylindrical projection In cartography, map projection is the term used to describe a broad set of transformations employed to represent the two-dimensional curved surface of a globe on a plane. In a map projection, coordinates, often expressed as latitude and longitu ...

—which Ptolemy disparages—rather than either of Ptolemy's; the world map is done according to the ''less''-favored of the two projections Ptolemy offers. Agathodaemon is sometimes conflated or confused with two other figures: the 3rd-century

alchemist Alchemy (from Arabic: ''al-kīmiyā''; from Ancient Greek: χυμεία, ''khumeía'') is an ancient branch of natural philosophy, a philosophical and protoscience, protoscientific tradition that was historically practiced in Chinese alchemy, C ...

Agathodaemon An agathodaemon ( grc, ἀγαθοδαίμων, ) or agathos daemon (, , ) was a spirit (''daemon'') of ancient Greek religion. They were personal or supernatural companion spirits, comparable to the Roman '' genii'', who ensured good luck, fer ...

and the 5th-century grammarian

who corresponded with

Isidore Isidore ( ; also spelled Isador, Isadore and Isidor) is an English and French masculine given name. The name is derived from the Greek name ''Isídōros'' (Ἰσίδωρος) and can literally be translated to "gift of Isis." The name has survived ...

Pelusium Pelusium ( Ancient Egyptian: ; cop, /, romanized: , or , romanized: ; grc, Πηλουσιον, Pēlousion; la, Pēlūsium; Arabic: ; Egyptian Arabic: ) was an important city in the eastern extremes of Egypt's Nile Delta, 30 km to ...

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* . * . * . * . * . * . * . * . {{authority control Ptolemy Roman-era Alexandrians Ancient Greek cartographers

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