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The Indus script, also known as the Harappan script, is a corpus of symbols produced by the
Indus Valley Civilisation The Indus Valley Civilisation (IVC), also known as the Indus Civilisation was a Bronze Age civilisation in the northwestern regions of South Asia, lasting from 3300 BCE to 1300 BCE, and in its mature form 2600 BCE to 1900&n ...
. Most inscriptions containing these symbols are extremely short, making it difficult to judge whether or not they constituted a
writing system A writing system is a method of visually representing verbal communication, based on a script and a set of rules regulating its use. While both writing and speech are useful in conveying messages, writing differs in also being a reliable form ...
used to record the as-yet unidentified language(s) of the Indus Valley Civilisation. Despite many attempts, the 'script' has not yet been deciphered, but efforts are ongoing. There is no known
bilingual inscription In epigraphy, a multilingual inscription is an inscription that includes the same text in two or more languages. A bilingual is an inscription that includes the same text in two languages (or trilingual in the case of three languages, etc.). Mul ...
to help decipher the script, and the script shows no significant changes over time. However, some of the
syntax In linguistics, syntax () is the study of how words and morphemes combine to form larger units such as phrases and sentences. Central concerns of syntax include word order, grammatical relations, hierarchical sentence structure ( constituency) ...
(if that is what it may be termed) varies depending upon location. The first publication of a seal with Harappan symbols dates to 1875, in a drawing by
Alexander Cunningham Major General Sir Alexander Cunningham (23 January 1814 – 28 November 1893) was a British Army engineer with the Bengal Engineer Group who later took an interest in the history and archaeology of India. In 1861, he was appointed to the newly ...
. By 1992, an inscribed objects had been discovered, some as far afield as
Mesopotamia Mesopotamia ''Mesopotamíā''; ar, بِلَاد ٱلرَّافِدَيْن or ; syc, ܐܪܡ ܢܗܪ̈ܝܢ, or , ) is a historical region of Western Asia situated within the Tigris–Euphrates river system, in the northern part of the F ...
, due to ancient
Indus–Mesopotamia relations Indus–Mesopotamia relations are thought to have developed during the second half of 3rd millennium BCE, until they came to a halt with the extinction of the Indus valley civilization after around 1900 BCE. Mesopotamia had already been an interme ...
, with over 400 distinct signs represented across known inscriptions. Some scholars, such as
G. R. Hunter G is the seventh letter of the Latin alphabet. G may also refer to: Places * Gabon, international license plate code G * Glasgow, UK postal code G * Eastern Quebec, Canadian postal prefix G * Melbourne Cricket Ground in Melbourne, Australia, ...
,
S. R. Rao Shikaripura Ranganatha Rao ( kn, ಶಿಕಾರಿಪುರ ರಂಗನಾಥ ರಾವ್) (1 July 1922 – 3 January 2013), commonly known as Dr. S. R. Rao, was an Indian archeologist, archaeologist who led teams credited with discoveries o ...
, John Newberry, and Krishna Rao have argued that the
Brahmi script Brahmi (; ; ISO: ''Brāhmī'') is a writing system of ancient South Asia. "Until the late nineteenth century, the script of the Aśokan (non-Kharosthi) inscriptions and its immediate derivatives was referred to by various names such as 'lath' o ...
has some connection with the Indus system.
Raymond Allchin Frank Raymond Allchin, FBA (9 July 1923 – 4 June 2010) was a British archaeologist and Indologist. He and his wife, Bridget Allchin, formed one of the most influential British partnerships in the post-Independence study of South Asian archaeolo ...
has somewhat cautiously supported the possibility of the Brahmi script being influenced by the Indus script. Another possibility for the continuity of the Indus tradition is in the megalithic culture graffiti symbols of southern and central India (and
Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
), which probably do not constitute a linguistic script but may have some overlap with the Indus symbol inventory. Linguists such as
Iravatham Mahadevan Iravatham Mahadevan (2 October 1930 – 26 November 2018) was an Indian epigraphist and civil servant, known for his decipherment of Tamil-Brahmi inscriptions and for his expertise on the epigraphy of the Indus Valley civilisation. Early life ...
,
Kamil Zvelebil Kamil Václav Zvelebil (November 17, 1927 – January 17, 2009) was a Czech scholar in Indian literature and linguistics, notably Tamil, Sanskrit, Dravidian linguistics and literature and philology. Life and career Zvelebil studied at the Char ...
, and
Asko Parpola Asko Parpola (born 12 July 1941, in Forssa) is a Finnish Indologist, current professor emeritus of South Asian studies at the University of Helsinki. He specializes in Sindhology, specifically the study of the Indus script. Biography Parpola is ...
have argued that the script had a relation to a
Dravidian language The Dravidian languages (or sometimes Dravidic) are a family of languages spoken by 250 million people, mainly in southern India, north-east Sri Lanka, and south-west Pakistan. Since the colonial era, there have been small but significant i ...
.


Corpus

By 1977 at least 2,906 inscribed objects with legible inscriptions had been discovered, and by 1992 a total of 4,000 inscribed objects had been found. Indus script symbols have primarily been found on
stamp seal __NOTOC__ The stamp seal is a carved object, usually stone, first made in the 4th millennium BC, and probably earlier. They were used to impress their picture or inscription into soft, prepared clay. Seal devices have seldom survived through ti ...
s, pottery, bronze and copper plates, tools, and weapons. The majority of the
textual corpus In linguistics, a corpus (plural ''corpora'') or text corpus is a language resource consisting of a large and structured set of texts (nowadays usually electronically stored and processed). In corpus linguistics, they are used to do statistical a ...
consists of seals, impressions of such seals, and graffiti markings inscribed on pottery. Seals and their impressions were typically small in size and portable, with most being just 2–3 centimetres in length on each side. No extant examples of the Indus script have been found on perishable organic materials like
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 ...
, paper, textiles, leaves, wood, or bark.


Early Harappan

Early examples of the Indus script have been found on pottery inscriptions and clay impressions of inscribed Harappan seals dating to around during the
Early Harappan period The Indus Valley Civilisation (IVC), also known as the Indus Civilisation was a Bronze Age civilisation in the northwestern regions of South Asia, lasting from 3300 BCE to 1300 BCE, and in its mature form 2600 BCE to 1900&n ...
, and emerging alongside administrative objects such as seals and standardised weights during the
Kot Diji The ancient site at Kot Diji ( sd, ڪوٽ ڏیجي; ur, کوٹ ڈیجی) was the forerunner of the Indus Civilization. The occupation of this site is attested already at 3300 BCE. The remains consist of two parts; the citadel area on high ground ...
phase of this period. However, excavations at Harappa have demonstrated the development of some symbols from potter's marks and graffiti belonging to the earlier
Ravi Ravi may refer to: People * Ravi (name), including a list of people and characters with the name * Ravi (composer) (1926–2012), Indian music director * Ravi (Ivar Johansen) (born 1976), Norwegian musical artist * Ravi (music director) (1926–201 ...
phase from .


Mature Harappan

In the Mature Harappan period, from about , strings of Indus signs are commonly found on flat, rectangular
stamp seal __NOTOC__ The stamp seal is a carved object, usually stone, first made in the 4th millennium BC, and probably earlier. They were used to impress their picture or inscription into soft, prepared clay. Seal devices have seldom survived through ti ...
s as well as written or inscribed on a multitude of other objects including pottery, tools, tablets, and ornaments. Signs were written using a variety of methods including carving, chiseling, embossing, and painting applied to diverse materials such as
terracotta Terracotta, terra cotta, or terra-cotta (; ; ), in its material sense as an earthenware substrate, is a clay-based ceramic glaze, unglazed or glazed ceramic where the pottery firing, fired body is porous. In applied art, craft, construction, a ...
,
sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) ...
,
soapstone Soapstone (also known as steatite or soaprock) is a talc-schist, which is a type of metamorphic rock. It is composed largely of the magnesium rich mineral talc. It is produced by dynamothermal metamorphism and metasomatism, which occur in the zo ...
, bone, shell, copper, silver, and gold. , Iravatham Mahadevan noted that about 90% of the Indus script seals and inscribed objects discovered so far were found at sites in
Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
along the
Indus river The Indus ( ) is a transboundary river of Asia and a trans-Himalayan river of South and Central Asia. The river rises in mountain springs northeast of Mount Kailash in Western Tibet, flows northwest through the disputed region of Kashmir, ...
and its
tributaries A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage b ...
, such as
Mohenjo-daro Mohenjo-daro (; sd, موئن جو دڙو'', ''meaning 'Mound of the Dead Men';Harappa Harappa (; Urdu/ pnb, ) is an archaeological site in Punjab, Pakistan, about west of Sahiwal. The Bronze Age Harappan civilisation, now more often called the Indus Valley Civilisation, is named after the site, which takes its name from a mode ...
, while other sites located elsewhere account for the remaining 10%. Often, animals such as bulls,
water buffalo The water buffalo (''Bubalus bubalis''), also called the domestic water buffalo or Asian water buffalo, is a large bovid originating in the Indian subcontinent and Southeast Asia. Today, it is also found in Europe, Australia, North America, So ...
es, elephants, rhinoceros, and the mythical "
unicorn The unicorn is a legendary creature that has been described since antiquity as a beast with a single large, pointed, spiraling horn projecting from its forehead. In European literature and art, the unicorn has for the last thousand years o ...
" accompanied the text on seals, possibly to help the illiterate identify the origin of a particular seal.


Late Harappan

The Late Harappan period, from , followed the more urbanised Mature Harappan period, and was a period of fragmentation and localisation which preceded the early Iron Age in the Indian subcontinent. Inscriptions have been found at sites associated with the localised phases of this period. At Harappa, the use of the script largely ceased as the use of inscribed seals ended around ; however, the use of the Indus script may have endured for a longer duration in other regions such as at
Rangpur, Gujarat Rangpur is an ancient archaeological site near Vanala on Saurashtra peninsula in Gujarat, western India. Lying on the tip between the Gulf of Khambhat and Gulf of Kutch, it belongs to the period of the Indus Valley civilization, and lies to th ...
, particularly in the form of graffiti inscribed on pottery. Seals from the
Jhukar phase The Jhukar Phase, was a phase of the Late Harappan culture in Sindh that continued after the decline of the mature Indus Valley civilisation in the 2nd millennium BC. It is named after the archaeological type site called Jhukar in Sindh. It was ...
of the Late Harappan period, centred on the present-day province of
Sindh Sindh (; ; ur, , ; historically romanized as Sind) is one of the four provinces of Pakistan. Located in the southeastern region of the country, Sindh is the third-largest province of Pakistan by land area and the second-largest province ...
in Pakistan, lack the Indus script, however, some
potsherd In archaeology, a sherd, or more precisely, potsherd, is commonly a historic or prehistoric fragment of pottery, although the term is occasionally used to refer to fragments of stone and glass vessels, as well. Occasionally, a piece of broken p ...
inscriptions from this phase have been noted. Both seals and potsherds bearing Indus script text, dated , have been found at sites associated with the
Daimabad Daimabad is a deserted village and archaeological site on the left bank of the Pravara River, a tributary of the Godavari River in Shrirampur taluka in Ahmednagar district of Maharashtra state in India. This site was discovered by B. P. Bopardi ...
culture of the Late Harappan period, in present-day
Maharashtra Maharashtra (; , abbr. MH or Maha) is a states and union territories of India, state in the western India, western peninsular region of India occupying a substantial portion of the Deccan Plateau. Maharashtra is the List of states and union te ...
.


Post-Harappan

Numerous artefacts, particularly potsherds and tools, bearing markings inscribed into them have been found in Central India, South India, and Sri Lanka dating to the
Megalith A megalith is a large stone that has been used to construct a prehistoric structure or monument, either alone or together with other stones. There are over 35,000 in Europe alone, located widely from Sweden to the Mediterranean sea. The ...
ic Iron Age which followed the Late Harappan period. These markings include inscriptions in the Brahmi and
Tamil-Brahmi Tamil-Brahmi, also known as Tamizhi or Damili, was a variant of the Brahmi script in southern India. It was used to write inscriptions in the early form of Old Tamil.Richard Salomon (1998) ''Indian Epigraphy: A Guide to the Study of Inscription ...
scripts, but also include non-Brahmi graffiti symbols which co-existed contemporaneously with the Tamil-Brahmi script. As with the Indus script, there is no scholarly consensus on the meaning of these non-Brahmi symbols. Some scholars, such as the anthropologist
Gregory Possehl Gregory Louis Possehl (July 21, 1941 – October 8, 2011) was a professor emeritus of anthropology at the University of Pennsylvania and curator of the Asian Collections at the University of Pennsylvania Museum of Archaeology and Anthropology. H ...
, have argued that the non-Brahmi graffiti symbols are a survival and development of the Indus script into and during the 1st millennium BCE. In 1960, archaeologist
B. B. Lal Braj Basi Lal (2 May 1921 – 10 September 2022) was an Indian writer and archaeologist. He was the Director General of the Archaeological Survey of India (ASI) from 1968 to 1972 and has served as Director of the Indian Institute of Advanced ...
found that a majority of the megalithic symbols he had surveyed were identifiably shared with the Indus script, concluding that there was a commonness of culture between the Indus Valley Civilisation and the later Megalithic period. Similarly, Indian epigraphist
Iravatham Mahadevan Iravatham Mahadevan (2 October 1930 – 26 November 2018) was an Indian epigraphist and civil servant, known for his decipherment of Tamil-Brahmi inscriptions and for his expertise on the epigraphy of the Indus Valley civilisation. Early life ...
has argued that sequences of Megalithic graffiti symbols have been found in the same order as those on comparable Harappan inscriptions and that this is evidence that language used by the Iron Age people of south India was related to or identical with that of the late Harappans.


Characteristics

The characters are largely
pictorial An image is a visual representation of something. It can be two-dimensional, three-dimensional, or somehow otherwise feed into the visual system to convey information. An image can be an artifact, such as a photograph or other two-dimensiona ...
, depicting objects found in the ancient world generally, found locally in Harappan culture, or derived from the natural world. However, many abstract signs have also been identified. Some signs are compounds of simpler pictorial signs, while others are not known to occur in isolation, being known only to occur as components of more complex signs. Some signs resemble
tally marks Tally marks, also called hash marks, are a unary numeral system ( arguably). They are a form of numeral used for counting. They are most useful in counting or tallying ongoing results, such as the score in a game or sport, as no intermediate ...
and are often interpreted as early numerals.


Number and frequency

The number of principal signs is over 400, which is considered too large a number for each character to be a
phonogram Phonogram may refer to: * A sound recording – see Geneva Phonograms Convention * ''Phonogram'' (comics), a comic book by Kieron Gillen and Jamie McKelvie * Phonogram (linguistics), a grapheme which represents a phoneme or a combination of phone ...
, and so the script is generally believed to be logo-syllabic. The precise total number of signs is uncertain, as there is disagreement concerning whether particular signs are distinct or variants of the same sign. In the 1970s, the Indian epigrapher
Iravatham Mahadevan Iravatham Mahadevan (2 October 1930 – 26 November 2018) was an Indian epigraphist and civil servant, known for his decipherment of Tamil-Brahmi inscriptions and for his expertise on the epigraphy of the Indus Valley civilisation. Early life ...
published a
corpus Corpus is Latin for "body". It may refer to: Linguistics * Text corpus, in linguistics, a large and structured set of texts * Speech corpus, in linguistics, a large set of speech audio files * Corpus linguistics, a branch of linguistics Music * ...
and
concordance Concordance may refer to: * Agreement (linguistics), a form of cross-reference between different parts of a sentence or phrase * Bible concordance, an alphabetical listing of terms in the Bible * Concordant coastline, in geology, where beds, or la ...
of Indus inscriptions listing 419 distinct signs in specific patterns. However, in 2015, the archaeologist and epigrapher Bryan Wells estimated that were around 694 distinct signs. Of the signs identified by Mahadevan, 113 are
hapax legomena In corpus linguistics, a ''hapax legomenon'' ( also or ; ''hapax legomena''; sometimes abbreviated to ''hapax'', plural ''hapaxes'') is a word or an expression that occurs only once within a context: either in the written record of an entire ...
, 47 occur only twice, and 59 occur fewer than five times. Just 67 signs account for 80 percent of usage across the corpus of Indus symbols. The most frequently used sign is the "jar" sign, identified by Parpola as 'sign 311'.


Writing direction

Most scholars agree that the Indus script was generally read from
right to left In a script (commonly shortened to right to left or abbreviated RTL, RL-TB or R2L), writing starts from the right of the page and continues to the left, proceeding from top to bottom for new lines. Arabic, Hebrew, Persian, Pashto, Urdu, Kashmiri ...
, however, some exceptions wherein the script is written left to right or in a
boustrophedon Boustrophedon is a style of writing in which alternate lines of writing are reversed, with letters also written in reverse, mirror-style. This is in contrast to modern European languages, where lines always begin on the same side, usually the le ...
mode are also known. Although the script is undeciphered, the writing direction has been deduced from external evidence, such as instances of the symbols being compressed on the left side as if the writer is running out of space at the end of the row. In the case of seals, which create a
mirror image A mirror image (in a plane mirror) is a reflected duplication of an object that appears almost identical, but is reversed in the direction perpendicular to the mirror surface. As an optical effect it results from reflection off from substances ...
impression on the clay or ceramic on which the seal is affixed, the impression of the seal is read from right to left, as is this case with inscriptions in other cases.


Relationship to other scripts

Some researchers have sought to establish a relationship between the Indus script and
Brahmi Brahmi (; ; ISO 15919, ISO: ''Brāhmī'') is a writing system of ancient South Asia. "Until the late nineteenth century, the script of the Aśokan (non-Kharosthi) inscriptions and its immediate derivatives was referred to by various names such ...
, arguing that it is a
substratum In linguistics, a stratum (Latin for "layer") or strate is a language that influences or is influenced by another through contact. A substratum or substrate is a language that has lower power or prestige than another, while a superstratum or sup ...
or ancestor to later writing systems used in the region of the Indian subcontinent. Others have compared the Indus script to roughly contemporary pictographic scripts from
Mesopotamia Mesopotamia ''Mesopotamíā''; ar, بِلَاد ٱلرَّافِدَيْن or ; syc, ܐܪܡ ܢܗܪ̈ܝܢ, or , ) is a historical region of Western Asia situated within the Tigris–Euphrates river system, in the northern part of the F ...
and the
Iranian plateau The Iranian plateau or Persian plateau is a geological feature in Western Asia, Central Asia, and South Asia. It comprises part of the Eurasian Plate and is wedged between the Arabian Plate and the Indian Plate; situated between the Zagros ...
, particularly Sumerian
proto-cuneiform The Proto-Cuneiform script was used in Mesopotamia from roughly 3300 BC to 2900 BC. It arose from the token based system used in the region for the preceding millennia and was replaced by the development of early Cuneiform script in the Early Dy ...
and
Elamite Elamite, also known as Hatamtite and formerly as Susian, is an extinct language that was spoken by the ancient Elamites. It was used in what is now southwestern Iran from 2600 BC to 330 BC. Elamite works disappear from the archeological record ...
scripts. However, researchers now generally agree that the Indus script is not closely related to any other writing systems of the second and third millennia BCE, although some convergence or
diffusion Diffusion is the net movement of anything (for example, atoms, ions, molecules, energy) generally from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in Gibbs free energy or chemical p ...
with Proto-Elamite conceivably may be found. A definite relationship between the Indus script and any other script remains unproven.


Comparisons with Brahmi

Researchers have compared the Indus valley script to the
Brahmi Brahmi (; ; ISO 15919, ISO: ''Brāhmī'') is a writing system of ancient South Asia. "Until the late nineteenth century, the script of the Aśokan (non-Kharosthi) inscriptions and its immediate derivatives was referred to by various names such ...
and
Tamil-Brahmi Tamil-Brahmi, also known as Tamizhi or Damili, was a variant of the Brahmi script in southern India. It was used to write inscriptions in the early form of Old Tamil.Richard Salomon (1998) ''Indian Epigraphy: A Guide to the Study of Inscription ...
scripts, suggesting that there may be similarities between them. These similarities were first suggested by early European scholars, such as the archaeologist
John Marshall John Marshall (September 24, 1755July 6, 1835) was an American politician and lawyer who served as the fourth Chief Justice of the United States from 1801 until his death in 1835. He remains the longest-serving chief justice and fourth-longes ...
and the
Assyriologist Assyriology (from Greek , ''Assyriā''; and , '' -logia'') is the archaeological, anthropological, and linguistic study of Assyria and the rest of ancient Mesopotamia (a region that encompassed what is now modern Iraq, northeastern Syria, southea ...
Stephen Langdon, with some, such as G.R. Hunter, proposing an indigenous origin of Brahmi with a derivation from the Indus script.


Comparisons with Proto-Elamite

Researchers have also compared the Indus valley script with the
Proto-Elamite script The Proto-Elamite period, also known as Susa III, is a chronological era in the ancient history of the area of Elam, dating from . In archaeological terms this corresponds to the late Banesh period. Proto-Elamite sites are recognized as the o ...
used in
Elam Elam (; Linear Elamite: ''hatamti''; Cuneiform Elamite: ; Sumerian: ; Akkadian: ; he, עֵילָם ''ʿēlām''; peo, 𐎢𐎺𐎩 ''hūja'') was an ancient civilization centered in the far west and southwest of modern-day Iran, stretc ...
, an ancient Pre-Iranian civilisation that was contemporaneous with the Indus Valley civilisation. Their respective scripts were contemporary to each other, and both were largely pictographic. About 35 Proto-Elamite signs may possibly be comparable to Indus signs. Writing in 1932, G.R. Hunter argued, against the view of Stephen Langdon, that the number of resemblances "seem to be too close to be explained by coincidence".


Theories and attempts at decipherment


Decipherability

The following factors are usually regarded as the biggest obstacles to successful decipherment: * Inscriptions are very short. The average length of the inscriptions is around five signs, and the longest only 34 characters long, found on a copper plate belonging to the mature Harappan period. Inscriptions vary between just one and seven lines, with single lines being most common. * There are doubts whether the Indus script records a written language or is instead a system of non-linguistic signs or
proto-writing Proto-writing consists of visible marks communicating limited information. Such systems emerged from earlier traditions of symbol systems in the early Neolithic, as early as the 7th millennium BC in Eastern Europe and China. They used ideograph ...
similar to
merchant's mark A merchant's mark is an emblem or device adopted by a merchant, and placed on goods or products sold by him in order to keep track of them, or as a sign of authentication. It may also be used as a mark of identity in other contexts. History ...
s and
house mark A house mark was originally a mark of property, later also used as a family or clan emblem, incised on the facade of a building, on animals, in signet and similar in the farmer and burgher culture of Germany and Scandinavia. These marks have ...
s, and to the contemporary
accounting token Number systems have progressed from the use of fingers and tally marks, perhaps more than 40,000 years ago, to the use of sets of glyphs able to represent any conceivable number efficiently. The earliest known unambiguous notations for number ...
s and numerical
clay tablet In the Ancient Near East, clay tablets (Akkadian ) were used as a writing medium, especially for writing in cuneiform, throughout the Bronze Age and well into the Iron Age. Cuneiform characters were imprinted on a wet clay tablet with a stylu ...
s of Mesopotamia. Due to the brevity of inscriptions, some researchers have questioned whether Indus symbols are even capable of expressing a spoken language. * The spoken
Harappan language The Harappan language is the unknown language or languages of the Bronze Age () Harappan civilization (Indus Valley civilization, or IVC). The language being unattested in any readable contemporary source, hypotheses regarding its nature are re ...
has not been identified, so, assuming it is a written language, the language the script is most likely to express is unknown. However, an loanwords in the
Rigveda The ''Rigveda'' or ''Rig Veda'' ( ', from ' "praise" and ' "knowledge") is an ancient Indian collection of Vedic Sanskrit hymns (''sūktas''). It is one of the four sacred canonical Hindu texts (''śruti'') known as the Vedas. Only one Sh ...
may provide evidence of substrate language(s) which may have been spoken in the region of the
Indus civilisation The Indus Valley Civilisation (IVC), also known as the Indus Civilisation was a Bronze Age civilisation in the northwestern regions of South Asia, lasting from 3300 BCE to 1300 BCE, and in its mature form 2600 BCE to 1900&n ...
. * No bigraphic or bilingual texts, like a
Rosetta Stone The Rosetta Stone is a stele composed of granodiorite inscribed with three versions of a Rosetta Stone decree, decree issued in Memphis, Egypt, in 196 BC during the Ptolemaic dynasty on behalf of King Ptolemy V Epiphanes. The top and middle te ...
, have been found. * No names, such as those of Indus rulers or personages, are known to be attested in surviving historical records or myths, as was the case with rulers like Rameses and Ptolemy, who were known to
hieroglyph A hieroglyph ( Greek for "sacred carvings") was a character of the ancient Egyptian writing system. Logographic scripts that are pictographic in form in a way reminiscent of ancient Egyptian are also sometimes called "hieroglyphs". In Neoplatoni ...
ic decipherers from records attested in Greek. Over the years, numerous
decipherment In philology, decipherment is the discovery of the meaning of texts written in ancient or obscure languages or scripts. Decipherment in cryptography refers to decryption. The term is used sardonically in everyday language to describe attempts to ...
s have been proposed, but there is no established scholarly consensus. The few points on which there exists scholarly consensus are the right-to-left direction of the majority of the inscriptions, numerical nature of certain stroke-like signs, functional homogeneity of certain terminal signs, and some generally adopted techniques of segmenting the inscriptions into initial, medial, and terminal clusters. Over 100 (mutually exclusive) attempts at decipherment have been published since the 1920s, and the topic is popular among amateur researchers.


Dravidian language

Although no clear consensus has been established, there are those who argue that the Indus script recorded a
Dravidian language The Dravidian languages (or sometimes Dravidic) are a family of languages spoken by 250 million people, mainly in southern India, north-east Sri Lanka, and south-west Pakistan. Since the colonial era, there have been small but significant i ...
. Early proponents included the archaeologist
Henry Heras Henry Heras (11 September 1888, Barcelona, Spain – 14 December 1955, Bombay, India) was a Spanish Jesuit priest, archeologist and historian in India. Education Enric Heras de Sicars (later in India he anglicised his Christian name to Henry) w ...
, who suggested several readings of signs based on a
proto-Dravidian Proto-Dravidian is the linguistic reconstruction of the common ancestor of the Dravidian languages. It is thought to have differentiated into Proto-North Dravidian, Proto-Central Dravidian, and Proto-South Dravidian, although the date of diversi ...
assumption. Based on computer analysis, the Russian scholar
Yuri Knorozov Yuri Valentinovich Knorozov (alternatively Knorosov; russian: link=no, Юрий Валентинович Кнорозов; 19 November 1922 – 31 March 1999) was a Soviet-Russian linguist, epigrapher and ethnographer, who is particularly renown ...
suggested that a Dravidian language is the most likely candidate for the underlying language of the script. The Finnish scholar
Asko Parpola Asko Parpola (born 12 July 1941, in Forssa) is a Finnish Indologist, current professor emeritus of South Asian studies at the University of Helsinki. He specializes in Sindhology, specifically the study of the Indus script. Biography Parpola is ...
led a Finnish team in the 1960s–80s that, like Knorozov's
Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
team, worked towards investigating the inscriptions using computer analysis. Parpola similarly concluded that the Indus script and Harappan language "most likely belonged to the Dravidian family". A comprehensive description of Parpola's work up to 1994 is given in his book ''Deciphering the Indus Script''. Supporting this work, the archaeologist
Walter Fairservis Walter Ashlin Fairservis (1921 – 1994) was an American archaeologist. Early life He was born in Brooklyn, New York, United States, in 1921. His mother, Edith Yeager, was an actress. His wife, Jano, was an artist and illustrator. He received B.A. ...
argued that Indus script text on seals could be read as names, titles, or occupations, and suggested that the animals depicted were
totem A totem (from oj, ᑑᑌᒼ, italics=no or ''doodem'') is a spirit being, sacred object, or symbol that serves as an emblem of a group of people, such as a family, clan, lineage, or tribe, such as in the Anishinaabe clan system. While ''the wo ...
s indicating
kinship In anthropology, kinship is the web of social relationships that form an important part of the lives of all humans in all societies, although its exact meanings even within this discipline are often debated. Anthropologist Robin Fox says that ...
or possibly
clan A clan is a group of people united by actual or perceived kinship and descent. Even if lineage details are unknown, clans may claim descent from founding member or apical ancestor. Clans, in indigenous societies, tend to be endogamous, meaning ...
s. The computational linguist
Rajesh P. N. Rao Rajesh P. N. Rao (born July 2, 1970 in Madras, India) is the Director of the National Science Foundation, NSF Center for Sensorimotor Neural Engineering, Center for Neurotechnology (CNT) and the Cherng Jia and Elizabeth Yun Hwang Professor of Comp ...
, along with a team of colleagues, performed an independent computational analysis and concluded that the Indus script has the structure of a written language, supporting prior evidence for
syntactic In linguistics, syntax () is the study of how words and morphemes combine to form larger units such as phrases and sentences. Central concerns of syntax include word order, grammatical relations, hierarchical sentence structure (constituency), ...
structure in the Indus script, and noting that the Indus script appears to have a similar
conditional entropy In information theory, the conditional entropy quantifies the amount of information needed to describe the outcome of a random variable Y given that the value of another random variable X is known. Here, information is measured in shannons, na ...
to
Old Tamil Old Tamil is the period of the Tamil language spanning from 300 BCE to 700 CE. Prior to Old Tamil, the period of Tamil linguistic development is termed as Pre Tamil. After the Old Tamil period, Tamil becomes Middle Tamil. The earliest records i ...
. These scholars have proposed readings of many signs; one such reading was legitimised when the Dravidian
homophonous A homophone () is a word that is pronounced the same (to varying extent) as another word but differs in meaning. A ''homophone'' may also differ in spelling. The two words may be spelled the same, for example ''rose'' (flower) and ''rose'' (p ...
words for 'fish' and 'star', , were hinted at through drawings of both the things together on Harappan seals. In a 2011 speech, Rajesh P. N. Rao said that
Iravatham Mahadevan Iravatham Mahadevan (2 October 1930 – 26 November 2018) was an Indian epigraphist and civil servant, known for his decipherment of Tamil-Brahmi inscriptions and for his expertise on the epigraphy of the Indus Valley civilisation. Early life ...
and Asko Parpola "have been making some headway on this particular problem", namely deciphering the Indus script, but concluded that their proposed readings, although they make sense, are not yet proof. In his 2014 publication ''Dravidian Proof of the Indus Script via The Rig Veda: A Case Study'', the epigraphist Iravatham Mahadevan identified a recurring sequence of four signs which he interpreted as an early Dravidian phrase translated as "Merchant of the City". Commenting on his 2014 publication, he stressed that he had not fully deciphered the Indus script, although he felt his effort had "attained the level of proof" with regards to demonstrating that the Indus script was a Dravidian written language.


Non-Dravidian languages


Indo-Aryan language

Perhaps the most influential proponent of the hypothesis that the Indus script records an early
Indo-Aryan language The Indo-Aryan languages (or sometimes Indic languages) are a branch of the Indo-Iranian languages in the Indo-European language family. As of the early 21st century, they have more than 800 million speakers, primarily concentrated in India, Pa ...
is the Indian archaeologist
Shikaripura Ranganatha Rao Shikaripura Ranganatha Rao ( kn, ಶಿಕಾರಿಪುರ ರಂಗನಾಥ ರಾವ್) (1 July 1922 – 3 January 2013), commonly known as Dr. S. R. Rao, was an Indian archaeologist who led teams credited with discoveries of a number of ...
, who in his books, ''Lothal and the Indus Civilization'' and ''The Decipherment of the Indus Script'', wrote that he had deciphered the script. While dismissing most such attempts at decipherment, John E. Mitchiner commented that "a more soundly-based but still greatly subjective and unconvincing attempt to discern an
Indo-European The Indo-European languages are a language family native to the overwhelming majority of Europe, the Iranian plateau, and the northern Indian subcontinent. Some European languages of this family, English, French, Portuguese, Russian, Dutch ...
basis in the script has been that of Rao". S.R. Rao perceived a number of similarities in shape and form between the late Harappan characters and the Phoenician letters, and argued that the Phoenician script evolved from the Harappan script, and not, as the classical theory suggests from the Proto-Sinaitic script. He compared it to the
Phoenician alphabet The Phoenician alphabet is an alphabet (more specifically, an abjad) known in modern times from the Canaanite and Aramaic inscriptions found across the Mediterranean region. The name comes from the Phoenician civilization. The Phoenician alpha ...
, and assigned sound values based on this comparison. Reading the script from left to right, as is the case with Brahmi, he concluded that Indus inscriptions included numerals and were "
Sanskritic Sanskrit (; attributively , ; nominalization, nominally , , ) is a classical language belonging to the Indo-Aryan languages, Indo-Aryan branch of the Indo-European languages. It arose in South Asia after its predecessor languages had Trans-cul ...
". S.R. Rao's interpretation helped to bolster
Hindu nationalist Hindu nationalism has been collectively referred to as the expression of social and political thought, based on the native spiritual and cultural traditions of the Indian subcontinent. "Hindu nationalism" or the correct term ''Hindū rāṣṭ ...
and Aryan indigenist views propagated by writers, such as
David Frawley David Frawley (born 1950) is an American author, astrologer, teacher (''acharya'') and a proponent of Hindutva. He has written numerous books on topics spanning the Vedas, Hinduism, Yoga, Ayurveda and Vedic astrology. His works have been popular ...
, who hold the conviction that
Indo-Aryan peoples Indo-Aryan peoples are a diverse collection of Indo-European peoples speaking Indo-Aryan languages in the Indian subcontinent. Historically, Aryan were the Indo-European pastoralists who migrated from Central Asia into South Asia and intr ...
are the original Bronze Age inhabitants of the
Indian subcontinent The Indian subcontinent is a list of the physiographic regions of the world, physiographical region in United Nations geoscheme for Asia#Southern Asia, Southern Asia. It is situated on the Indian Plate, projecting southwards into the Indian O ...
and that the
Indo-European language family The Indo-European languages are a language family native to the overwhelming majority of Europe, the Iranian plateau, and the northern Indian subcontinent. Some European languages of this family, English, French, Portuguese, Russian, Dutch ...
originated in India. However, there are many problems with this hypothesis, particularly the cultural differences evident between the Indus River Civilisation and
Indo-European culture Proto-Indo-European society is the reconstructed culture of Proto-Indo-Europeans, the ancient speakers of the Proto-Indo-European language, ancestor of all modern Indo-European languages. Scientific approaches Many of the modern ideas in this ...
s, such as the role of horses in the latter; as Parpola put it, "there is no escape from the fact that the horse played a central role in the Vedic and Iranian cultures". Additionally, the Indus script appears to lack evidence of
prefix A prefix is an affix which is placed before the Word stem, stem of a word. Adding it to the beginning of one word changes it into another word. For example, when the prefix ''un-'' is added to the word ''happy'', it creates the word ''unhappy'' ...
es,
infix An infix is an affix inserted inside a word stem (an existing word or the core of a family of words). It contrasts with ''adfix,'' a rare term for an affix attached to the outside of a stem, such as a prefix or suffix. When marking text for int ...
es, and
inflection In linguistic morphology, inflection (or inflexion) is a process of word formation in which a word is modified to express different grammatical categories such as tense, case, voice, aspect, person, number, gender, mood, animacy, and defin ...
al endings, which Possehl has argued rules out an Indo-European language such as Sanskrit as the language of the Indus script.


Munda language

A less popular hypothesis suggests that the Indus script belongs to the Munda family of languages. This language family is spoken largely in Eastern India, and is related to some Southeast Asian languages. However, much like the Indo-Aryan language, the reconstructed vocabulary of early Munda does not reflect the Harappan culture, therefore, its candidacy for being the language of the Indus Civilisation is dim.


Non-linguistic signs

An opposing hypothesis is that these symbols are nonlinguistic signs which symbolise families, clans, gods, and religious concepts, and are similar to components of
coats of arms A coat of arms is a heraldic visual design on an escutcheon (i.e., shield), surcoat, or tabard (the latter two being outer garments). The coat of arms on an escutcheon forms the central element of the full heraldic achievement, which in its wh ...
or
totem poles Totem poles ( hai, gyáaʼaang) are monumental carvings found in western Canada and the northwestern United States. They are a type of Northwest Coast art, consisting of poles, posts or pillars, carved with symbols or figures. They are usually m ...
. In a 2004 article, Steve Farmer,
Richard Sproat Richard Sproat is a computational linguist currently working for Google as a researcher on text normalization and speech recognition. Linguistics Sproat graduated from Massachusetts Institute of Technology in 1985, under the supervision of K ...
, and
Michael Witzel Michael Witzel (born July 18, 1943) is a German-American philologist, comparative mythologist and Indologist. Witzel is the Wales Professor of Sanskrit at Harvard University and the editor of the Harvard Oriental Series (volumes 50–80). Witze ...
presented a number of arguments stating that the Indus script is nonlinguistic. The main ones are the extreme brevity of the inscriptions, the existence of too many rare signs (which increase over the 700-year period of the Mature Harappan civilisation), and the lack of the random-looking sign repetition that is typical of language.


Controversy

Asko Parpola Asko Parpola (born 12 July 1941, in Forssa) is a Finnish Indologist, current professor emeritus of South Asian studies at the University of Helsinki. He specializes in Sindhology, specifically the study of the Indus script. Biography Parpola is ...
, reviewing the Farmer ''et al.'' thesis in 2005, stated that their arguments "can be easily controverted". He cited the presence of a large number of rare signs in Chinese and emphasised that there was "little reason for sign repetition in short seal texts written in an early logo-syllabic script". Revisiting the question in a 2008 lecture, Parpola took on each of the 10 main arguments of Farmer ''et al.'', presenting counterarguments for each. A 2009 paper published by Rajesh P.N. Rao,
Iravatham Mahadevan Iravatham Mahadevan (2 October 1930 – 26 November 2018) was an Indian epigraphist and civil servant, known for his decipherment of Tamil-Brahmi inscriptions and for his expertise on the epigraphy of the Indus Valley civilisation. Early life ...
and others in the journal ''
Science Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for ...
'' also challenged the argument that the Indus script might have been a nonlinguistic symbol system. The paper concluded that the
conditional entropy In information theory, the conditional entropy quantifies the amount of information needed to describe the outcome of a random variable Y given that the value of another random variable X is known. Here, information is measured in shannons, na ...
of Indus inscriptions closely matched those of linguistic systems like the Sumerian logo-syllabic system, Rig Vedic Sanskrit etc., but they are careful to stress that by itself does not imply that the script is linguistic. A follow-up study presented further evidence in terms of entropies of longer sequences of symbols beyond pairs. However, Sproat argued that there existed a number of misunderstandings in Rao ''et al.'', including a lack of discriminative power in their model, and argued that applying their model to known non-linguistic systems such as Mesopotamian deity symbols produced similar results to the Indus script. Rao ''et al.'' argument against Sproat's arguments and Sproat's reply were published in ''
Computational Linguistics Computational linguistics is an Interdisciplinarity, interdisciplinary field concerned with the computational modelling of natural language, as well as the study of appropriate computational approaches to linguistic questions. In general, comput ...
'' in December 2010. The June 2014 issue of ''Language'' carries a paper by Sproat that provides further evidence that the methodology of Rao ''et al.'' is flawed. Rao ''et al.'' rebuttal of Sproat's 2014 article and Sproat's response are published in the December 2015 issue of ''Language''.


Encoding

The Indus symbols have been assigned the
ISO 15924 ISO 15924, ''Codes for the representation of names of scripts'', is an international standard defining codes for writing systems or ''scripts'' (a "set of graphic characters used for the written form of one or more languages"). Each script is given ...
code "Inds".
Michael Everson Michael Everson (born January 9, 1963) is an American and Irish linguist, script encoder, typesetter, type designer and publisher. He runs a publishing company called Evertype, through which he has published over a hundred books since 2006. His ...
submitted a completed proposal for encoding the script in Unicode's
Supplementary Multilingual Plane In the Unicode standard, a plane is a continuous group of 65,536 (216) code points. There are 17 planes, identified by the numbers 0 to 16, which corresponds with the possible values 00–1016 of the first two positions in six position hexadecimal ...
in 1999, but this proposal has not been approved by the
Unicode Technical Committee The Unicode Consortium (legally Unicode, Inc.) is a 501(c)(3) non-profit organization incorporated and based in Mountain View, California. Its primary purpose is to maintain and publish the Unicode Standard which was developed with the intentio ...
. , the Script Encoding Initiative still lists the proposal among the list of scripts that are not yet officially encoded in the Unicode Standard (and
ISO/IEC 10646 ISO/IEC JTC 1, entitled "Information technology", is a joint technical committee (JTC) of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). Its purpose is to develop, maintain and pr ...
). The Indus Script Font is a
Private Use Areas In Unicode, a Private Use Area (PUA) is a range of code points that, by definition, will not be assigned characters by the Unicode Consortium. Three private use areas are defined: one in the Basic Multilingual Plane (), and one each in, and nearl ...
(PUA)
font In metal typesetting, a font is a particular size, weight and style of a typeface. Each font is a matched set of type, with a piece (a "sort") for each glyph. A typeface consists of a range of such fonts that shared an overall design. In mod ...
representing the Indus script. The font was developed based on a corpus compiled by Sindhologist
Asko Parpola Asko Parpola (born 12 July 1941, in Forssa) is a Finnish Indologist, current professor emeritus of South Asian studies at the University of Helsinki. He specializes in Sindhology, specifically the study of the Indus script. Biography Parpola is ...
in his book ''Deciphering the Indus Script''. Amar Fayaz Buriro, a language engineer, and Shabir Kumbhar, a developer of fonts, were tasked by the National Fund for Mohenjo-daro to develop this font, and they presented it at an international conference on Mohenjo-daro and the Indus Valley Civilisation on 8 February 2017.


See also


Notes


References


Works cited

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *


Further reading

* * * * Adapted from an address given at the inaugural function of the Indus Research Centre at the
Roja Muthiah Research Library The Roja Muthiah Research Library (RMRL), in Chennai, India, was founded in 1994, and opened to researchers in 1996; it provides research materials for Tamil studies in a variety of fields of the humanities, social sciences, and sciences. The Li ...
, Chennai, on 25 January 2007. * * * * * * *


External links

*
How come we can't decipher the Indus script?

Articles by Steve Farmer, including essays about the Indus script


at Omniglot.com {{DEFAULTSORT:Indus Script Bronze Age writing systems Indus Valley civilisation Linguistic history of India Linguistic history of Pakistan Obsolete writing systems Proto-writing Right-to-left writing systems Undeciphered writing systems Writing systems of Asia Writing systems without word boundaries