19.6 Essay Phaistos MH Colin
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OPINION NATURE|Vol 453|19 June 2008 ESSAY A century of puzzling Believed to be the world’s first printed document, the Phaistos Disc was unearthed 100 years ago. Andrew Robinson explains why this remarkable object remains undeciphered. he Rosetta Stone is the most famous of Bennett Jr of the University of Cincinnati, threatening challenge to historians”, because ancient inscriptions; it unlocked the wrote in 1998 that any book cover emblazoned it suggests that the history of invention is so Tmeaning of thousands of Egyptian hiero- with the Phaistos Disc — and there have been idiosyncratic as to be unpredictable. How glyphic inscriptions. The undeciphered Phais- many — was for him “the equivalent of the could printing, once invented, disappear for tos Disc, discovered by an Italian archaeologist skull and crossbones on the bottle of poison”. millennia? at Phaistos near the coast of southern Crete a In 2000, the American Journal of Archaeology Third, the disc is a Greek national icon, and century ago next month, is perhaps the most ran a review titled “How not to decipher the a key attraction at the Archaeological Museum infamous. Phaistos Disc”, by Yves Duhoux of the Catho- at Iraklion in Crete. The Greek authorities have Luigi Pernier found the disc on 3 July 1908 lic University of Louvain in Belgium, author rebuffed several appeals, most recently in 2007, in a basement cell of a ruined Minoan palace of the leading scholarly book on the subject, for the disc to be thermoluminescence tested — dating from the first half of the second millen- Le Disque de Phaestos. a technique that reveals an approximate date of nium bc. No other samples of the script have Second, the disc is notorious for being the last firing for pottery. The reason, says Jerome turned up since. Pernier published his find in world’s first ‘printed’ document, predating Eisenberg, an expert in ancient forgery and 1909 without trying to decipher it. The same Gutenberg’s Bible by more than 3,000 years. fraud, and editor-in-chief of the international year, archaeologist Arthur Evans, discoverer of As Jared Diamond explains in Guns, art and archaeology review Minerva, ancient Knossos in the island’s north, included Germs and Steel, this is “a is that “no Greek scholar or fine photographs and good drawings of the disc in an appendix to his pioneering volume of Minoan inscriptions, Scripta Minoa. Tan- talized scholars in many countries began to G. DAGLI ORTI/CORBIS G. DAGLI speculate as to its meaning. Evans’s subsequent lengthy discussion of the disc in volume one of his celebrated The Palace of Minos at Knossos, published in 1921, threw down the gauntlet to would-be decipherers everywhere. Over the past hundred years the disc has become notorious for three reasons. First, the pictograms on its clay surface have provoked dozens of wildly incompatible hypotheses about what it is and what it says. Compet- ing interpreters have included a Cam- bridge classicist, a Harvard professor of zoology and, very recently, a geneticist from the University of Perugia in Italy. Interpreta- tions range from astronomi- cal calendars and bronze-age computers through board games to a victory chant and pre-homeric poetry, written in languages as dis- parate as Greek, Minoan, Hittite, Semitic, Egyptian and Slavonic. In the 1980s, the classicist John Chadwick, who helped to decipher the Minoan script Linear B, received roughly one claimed decipherment per month. Around the same time, National Geographic even planned a lead story supporting a decipherment of the disc as a Minoan proclamation of war against Anatolia written in a ‘Hellenic’ dialect. Three senior classicists led by Chadwick persuaded the magazine to withdraw its embarrassing endorsement. Another of the three, Emmett 990 NATURE|Vol 453|19 June 2008 OPINION politician would dare to help ‘destroy’ such a for instance. The 45 signs on the Phaistos Disc national treasure”. are too numerous for any known alphabet; The archaeological context of the disc’s the largest, Russian, has 36. And they are far discovery implies a date of 1850–1600 bc. To too few to resemble a script such as Egyptian suggest that it might be a 1908 hoax — Pilt- hieroglyphic or Babylonian cuneiform, which down man with a printing set — as two or three boast hundreds of logograms (word signs) scholars, including Eisenberg, have proposed, along with their core phonetic signs. More- is as heretical to Greek ears as the international over, the length of the disc’s sections supports a scholarly allegations of the 1990s that Heinrich syllabary — such scripts typically have words Schliemann may have faked some discoveries of this length as syllabaries are more concise at Troy and Mycenae. than alphabets. The full script probably used more signs Spiral stamps than appear on the disc. A small sample of a The disc is made of fine clay. It is about 16 cm text might omit less frequent signs: the pre- across and 1.9 cm thick. Both sides carry an ceding paragraph, for example, contains no inscription arranged in a spiral around the ‘q’, ‘x’ or ‘z’. Linguists have a formula for cal- centre — characters impressed with a punch culating the probable number of signs in an ART ARCHIVE/BIBLIOTHÈQUE DES ARTS DÉCORATIFS PARIS/G. DAGLI ORTI DAGLI PARIS/G. DÉCORATIFS DES ARTS ARCHIVE/BIBLIOTHÈQUE ART or stamp before the clay was fired. There are alphabet or syllabary from a small text sample. 241 or 242 characters (one is damaged), which It works well with modern languages and writ- comprise 45 signs of variable frequency. For ing systems such as the English alphabet, the comparison, there are thousands of characters Arabic consonantal script and the Japanese in a few pages of printed English text, compris- syllabic kana, and also with Linear B. This ing the 26 signs we call letters. Lines partition formula predicts a syllabary of 56–57 signs the disc’s characters into 31 short sections on when applied to the characters of the Phaistos side A and 30 on side B, most of which contain Disc, as Alan Mackay demonstrated in 1965. three, four or five characters. It is tempting to So there were probably 11 or 12 more signs speculate that these sections represent words than we see on the disc. This total would be in the language of the disc. manageable for printing — unlike, say, hun- That the characters were printed, not carved, dreds of logograms. is beyond dispute. But no one knows why the Archaeologist Arthur Evans tantalized scholars Every successful decipherment of an ancient disc’s maker bothered to produce a punch or with his description of the Phaistos Disc. script, from Egyptian hieroglyphs in the 1820s stamp for each sign, rather than inscribing through Linear B in the 1950s, up to the Mayan each character afresh. Egyptian hieroglyphs from right to left, probably revolving the disc glyphs of the past few decades, has depended or Mesopotamian cuneiform of the second for convenience. And a right-to-left direction for general acceptance on testing against plen- millennium bc are inscribed on stone or clay; is feasible, given the order of the characters, tiful virgin inscriptions. At present, all leading ditto the Minoan scripts Linear A and B found only if the disc was inscribed from rim to cen- Minoan script researchers are compelled to at Phaistos, Knossos and other Cretan sites. If tre. Presumably, it was meant to be read in the concede that to make further progress on the the punch or stamp was to ‘print’ many copies same direction. Phaistos Disc we must hunt for more exam- of documents, one would expect further sam- The character count and the number of signs ples around the shores of the eastern Mediter- ples to have turned up in a century of intensive tell experienced cryptographers two things ranean. Such a breakthrough occurred with Mediterranean excavation. (assuming that the writing represents a spoken another fascinating solitary inscription — that There is patchy and inconclusive evidence language, rather than special- of the Tuxtla Statuette, found for and against the disc’s Cretan origin. The ized notation as in a calendar “To make further in Mexico in 1902 and sent to signs look nothing like those of Linear A, Lin- or a game). First, the low ratio progress on the the Smithsonian Institution ear B or any other Minoan script, except coin- of character count to number in Washington DC. In 1986 a cidentally. This has led some, including Evans of signs — compare the higher Phaistos Disc we much more substantial exam- and Chadwick, to propose that the disc — and ratio in even one page of must hunt for more ple of the same script turned presumably its language, too — was an import. printed English — means we examples around the up at La Mojarra, not far from One sign bears a remarkable resemblance to do not have enough text to Tuxtla. The subsequent, con- the architecture of rock tombs found in Ana- decode it without help from shores of the eastern troversial, decipherment made tolia in modern Turkey. One or two others other clues, such as archaeo- Mediterranean.” the cover of Science. resemble signs found on a few contemporane- logical context or knowledge In the meantime, a ther- ous objects from different sites in Crete. Most of the likely underlying language. Computers moluminescence test for the Phaistos Disc is scholars today, including Duhoux, think it a are of no help here as they depend on statistical imperative. It will either confirm that new finds plausible working hypothesis that the disc was analysis of ample text. are worth hunting for, or it will stop scholars made in Crete.