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Pous

The pous (: πούς, poús), also known as the Greek foot, was a fundamental anthropocentric in , derived from the approximate length of a foot and used extensively in , engineering, and daily measurements from the period through the Hellenistic era. Its value varied regionally and over time, typically ranging from about 29.6 cm in Attic contexts to 33.3 cm in Aeginetan standards, with the Doric pous often measured at around 32.7 cm based on archaeological evidence from structures like the 4th–3rd century BCE theater at Makyneia. This variability stemmed from local adaptations and the unit's basis in human anatomy, often subdivided into 16 dáktyloi (fingers) or related to larger measures like the pechýs (, roughly 1.5 podes) and the stádion (600 podes). The pous influenced and Byzantine , with equivalents appearing in the pes (about 29.6 ), and it played a key role in monumental constructions, as evidenced by statistical analyses of building dimensions in sites such as the in , where a pous of 32.4–32.5 was derived. In broader historical context, the unit reflected the practical, body-based systems of measurement prevalent in the ancient Mediterranean, facilitating trade, land division, and across city-states.

Etymology and Definition

Linguistic Origins

The term pous (Ancient Greek: πούς) derives from the *pōds, denoting "foot," with cognates including Latin pes and pād-. In , pous primarily signifies the anatomical foot of humans or animals, often evoking ideas of motion, support, or swiftness, and semantically extends to a approximated by the shod foot. The Homeric epics illustrate this usage, with pous appearing in the Iliad to describe feet in motion or physical prowess, such as the epithet "swift-footed" (ποδάρκης) applied to Achilles in Iliad 1.482, emphasizing agility rather than precise measurement. In Byzantine Greek, pous retained its dual semantic roles as both the anatomical foot and a standard unit of length, with orthographic consistency in forms like πούς across medieval texts and inscriptions.

Basic Definition and Components

The pous was the fundamental unit of length in ancient Greek metrology, serving as the base for measuring distances and dimensions in architecture, surveying, and everyday applications. Approximating the length of an adult male foot, it embodied the anthropometric approach common in ancient systems, where human body parts provided natural standards for measurement. This unit's design allowed for practical subdivision into smaller components, facilitating precise calculations without specialized tools. The pous was typically divided into 16 daktyloi, the smallest subunit representing the breadth of a finger. It could also be subdivided into 4 palaistai, each palaistē equivalent to the width of a palm and comprising 4 daktyloi. These subdivisions enabled flexible application, with the daktylos serving as the granular base for finer work. During the classical period, the pous generally ranged from approximately 0.30 to 0.33 meters, providing a consistent scale across diverse applications while allowing for minor variations in practice.

Historical Development

Origins in Archaic and Classical Greece

The pous, or ancient Greek foot, emerged as a fundamental unit of length during the period (c. 800–480 BCE), with its earliest literary attestations appearing in the Homeric epics of the 8th century BCE, where it functioned as a poetic measure of distance and dimension in narrative descriptions of spaces and objects. These texts reflect the unit's anthropomorphic basis, derived from the average length of a human foot, and its application in epic contexts to convey scale, such as the dimensions of shields or the span of jumps in heroic feats. Standardization efforts in the 7th century BCE, such as those attributed to Pheidon of Argos, introduced uniform weights and measures across regions, laying groundwork for later reforms. By the 6th century BCE, as Greek poleis like expanded through trade and monumental architecture, these efforts intensified to support economic interchange and large-scale temple construction, such as the early phases of the Athenian projects. Solon's reforms in around 594 BCE played a pivotal role, introducing uniform standards for weights and measures to resolve disputes and promote commerce. This unification facilitated precise planning in building endeavors, where the pous served as a baseline for modular designs in classical temples. The development of the pous was shaped by interactions along Mediterranean trade routes, incorporating elements from Egyptian and Near Eastern metrological systems while adapting them to local Greek practices. Egyptian influences, particularly the djeba (a finger unit of about 18.75 mm), informed the Greek daktylos (c. 18–21 mm), leading to a pous of roughly 0.31 m, slightly larger than its predecessors to suit regional needs. Phoenician intermediaries further transmitted these concepts, enabling Greek merchants to integrate the unit into broader exchange networks. A significant application of the pous occurred in the , instituted in 776 BCE, where the stadion race—the inaugural event—spanned 600 podes, establishing the unit's role in standardizing athletic distances and pan-Hellenic competitions. This measurement not only defined the physical layout of the stadium but also symbolized communal unity across city-states during the Archaic era.

Evolution in Hellenistic, Roman, and Byzantine Periods

During the (323–31 BCE), the pous unit, building on its classical foundations, disseminated widely across the Great's former empire, fostering hybrid metrological standards that blended conventions with local practices in regions such as Ptolemaic Egypt and Asia Minor. Archaeological evidence from structures like the theatre at Makyneia in (dated to the 4th–3rd centuries BCE) demonstrates the continued application of the Doric pous, measured at approximately 0.327 m and subdivided into 24 digits for precise and seating arrangements. These adaptations reflected the era's cultural synthesis, where the pous served as a foundational length in and monumental amid expanding Hellenistic kingdoms. In the era, pous was incorporated into the imperial measurement system as the pes, with slight calibrations to align with standards; the pes was fixed at about 0.296 m, paralleling the pous and divided into 12 unciae (inches) or 16 digiti (fingers). The architect , writing in the 1st century BCE, highlighted the pous's role as a proportional —derived from one-sixth of the —in Greek-inspired designs, underscoring its utility in provinces with Greek-speaking populations where hybrid Greco- metrology prevailed. This integration ensured the unit's persistence in texts and provincial , bridging Hellenistic legacies with standardization. The (up to the ) maintained the pous as a core element of its measurement framework, evident in administrative records, legal codes, and ecclesiastical documents that regulated land, construction, and trade. In , the unit stabilized at approximately 0.3148 m, forming the basis for larger measures like the pechys (1.5 pous) and serving in the computation of areas and distances within the empire's bureaucratic system. This continuity underscored the pous's enduring administrative role, even as Byzantine occasionally accommodated regional variations from conquered territories. By the late medieval period, the pous's prominence waned amid territorial losses and external pressures, including the Fourth Crusade's in and the conquest in 1453, which introduced Islamic and Western European units and gradually supplanted traditional Greek measures with emerging international standards, culminating in the metric system's adoption centuries later.

Regional Variations

Attic Pous

The pous, the principal unit of length employed in and especially during the Classical period, measured approximately 0.308 meters (308 mm). This value derives from direct archaeological evidence, including precise measurements of the base and other monumental structures, where dimensions align consistently with this standard. The unit's reliability is further supported by analyses of architectural fragments from Athenian buildings, confirming its role as a foundational measure in regional . Specific to Attic usage, the pous was subdivided into 16 daktyloi, the smallest common subunit representing the breadth of a , with each daktylos equaling 19.25 . This division facilitated fine-grained measurements in and craftsmanship, allowing builders to scale larger structures proportionally from the base foot. The 16-daktylos structure distinguished the Attic system slightly from other variants while maintaining compatibility within the overarching framework of units derived from human . In the BCE, the pous was formally standardized in to ensure uniformity across , including temples, civic buildings, and projects funded by the city's . This supported the Periclean building program, where consistent metrics were essential for coordinating large-scale endeavors like the . Additionally, the unit influenced aspects of coinage production, as die sizes and flan dimensions were calibrated to Attic proportions for economic precision in trade and taxation. Key evidence for the Attic pous appears in surviving inscriptions, particularly the Athenian treasury records known as the Parthenon building accounts (IG I³ 436–455), which document expenditures for materials and structural elements. These epigraphic sources, inscribed on marble stelai, reveal practical applications, underscoring the unit's centrality to administrative and practices.

Aeginan, Doric, and Other Standards

The Aeginan pous, measuring approximately 0.333 meters, was a prominent regional standard employed in and extending to parts of , particularly in contexts influenced by maritime commerce. This longer variant facilitated standardized measurements in networks across the Saronic Gulf and beyond, where Aegina's role as a naval and mercantile hub necessitated consistent units for , cargo assessment, and market exchanges. Evidence from Aeginetan coinage and dedications underscores its adaptation to local economic demands, diverging from shorter eastern standards to accommodate regional practices. In contrast, the Doric pous, approximately 0.327 meters, prevailed in settlements such as Syracuse and other western colonies, as attested by architectural remnants like foundations and metrological reliefs. This unit, confirmed through the analysis of the Salamis metrological relief and applied in structures like the 4th–3rd century BCE theater at Makyneia, supported precise proportional systems in monumental building, where dimensions often aligned with multiples of 24 digits (each about 0.0136 meters). Its prevalence reflects cultural emphases on symmetry and scale in civic and religious . Other variants included the pous of roughly 0.320 meters, utilized in the at to define race distances like the stadion (600 feet, or 192.28 meters total). This standard, derived from the site's preserved track, emphasized uniformity for athletic competitions across city-states. The Samian pous, around 0.352 meters and akin to the Egyptian foot, appeared in Ionian contexts on , influencing pottery and temple metrics through eastern trade ties. Similarly, the Milesian standard, approximately 0.348–0.350 meters, supported metrology in Ionian cities like , evident in and coastal fortifications. These divergences arose from anthropometric bases—variations in average foot lengths among populations—combined with trade influences that imported foreign units and the absence of a centralized metrological authority.

Metrological Relations

Position in the Greek Measurement System

The pous occupied a pivotal position in the linear , functioning as a fundamental unit that subdivided into smaller fractions and scaled up to larger distances for practical applications in , athletics, and . This hierarchical structure was rooted in anthropometric divisions, with the pous typically comprising 16 daktyloi (fingers), reflecting the breadth of a hand's digits as the smallest common subunit. Equivalently, one pous equaled 4 dōrōn or 4 palaistai (s), each palm spanning four daktyloi, thereby maintaining integer-based subdivisions for in craftsmanship and . Scaling upward, the system extended the pous into broader measures essential for and trade: 1.5 podes formed one pechys (); six podes equaled one orgyia (, the span of outstretched arms); 100 podes defined one plethron (a for fields or building plots); and 600 podes constituted one stadion (the of a racetrack). These relations ensured a coherent framework where the pous acted as the scalable base, facilitating conversions across scales without loss of relative proportion. Although the absolute length of the pous varied regionally—such as the shorter Aeginan or Doric variants compared to the standard—the proportional hierarchies remained consistent throughout Greek-speaking areas, enabling in and despite local metrological differences. This uniformity in ratios underscored the system's adaptability, as evidenced in surviving inscriptions and architectural remnants. Note that scholarly estimates for the Attic pous vary slightly, with textual standards at ~29.6 cm and some architectural analyses (e.g., ) suggesting ~30.8 cm. Beyond linear uses, the pous underpinned derived measurements for area and volume, with the square pous serving as a basic unit for small plots and the plethron functioning dually as a linear span and an areal measure equivalent to 100 by 100 podes, approximately 10,000 square pous. Such derivations supported land allocation in agrarian societies and volumetric calculations in or storage, emphasizing the pous's integral role in multidimensional . The stadion length also varied regionally due to pous differences, ranging from ~177 m (Attic) to ~200 m (other standards).

Comparisons to Roman, Egyptian, and Other Ancient Units

The pes, or foot, measured approximately 0.296 meters and was subdivided into 16 digits or 12 unciae, mirroring the structure of the pous. In comparison, the Attic pous at approximately 0.296 meters closely matched the pes, facilitating trade and architectural exchanges between and spheres. This inheritance from metrology to standardization is evident in shared subdivisions and applications in , though the pes became more uniform across the empire. The Egyptian foot, derived from the royal cubit of 0.523–0.525 meters and typically equaling 0.300 meters (16 fingers), provided a foundational influence on both Greek and Roman systems. Greeks adopted and adapted this unit during interactions with Egypt, particularly in Ptolemaic times when the pous was integrated into administrative and construction practices alongside the native cubit, allowing for hybrid measurements in Hellenistic Alexandria. For instance, the Attic pous aligned closely with the Egyptian foot, differing by less than 2%, which eased conversions in cross-cultural commerce but required adjustments for precision in monumental works. Mesopotamian and Phoenician influences are apparent in longer Greek variants like the Aeginan pous, which measured around 0.333 meters and may have drawn from cubit-based feet in those regions, where units derived from cubits of approximately 0.52 meters produced feet near 0.330 meters. These Eastern systems, transmitted via Phoenician trade networks, likely shaped Doric and Aeginan standards through maritime contacts, as seen in proportional alignments between Mesopotamian cubits (0.5185 meters) and certain Greek feet via integer ratios like 18:20. Such borrowings highlight the pous's evolution beyond purely local origins, incorporating Near Eastern for broader Mediterranean applications. Regional variations across these civilizations posed significant conversion challenges, as no universal standard existed; for example, the Aeginan pous equated to about 1.11 feet, complicating equitable exchanges in multicultural hubs like Ptolemaic ports. Scholars note that while the Greek system positioned the pous as a base unit scalable to larger measures like the (1.5 pous), intercultural ratios often required empirical adjustments rather than fixed equivalences, underscoring the practical adaptability of ancient .

Physical Standards and Equivalents

Ancient Artifacts and Measurements

Physical evidence for ancient pous standards survives in several key artifacts, providing direct insights into the practical application of these units across different regions and periods. The in , constructed between 447 and 432 BCE, exemplifies the pous in its architectural dimensions; the measures 225 Attic podes in length and 100 Attic podes in width, reflecting the precision of Classical Greek metrology. These measurements underscore the Attic standard's role in monumental , where the pous served as a fundamental module for aligning structural elements. At the Temple of in , built around 460 BCE, the Olympic pous—a regional variant slightly longer than the foot at approximately 0.326 m—governs key proportions, particularly in column spacing. The interaxial distance between columns is 16 Olympic podes, ensuring harmonious scaling in this Doric temple dedicated to the pan-Hellenic . This usage highlights the Olympic standard's prominence in sacred associated with the Eleian . Metrological reliefs offer preserved standards carved in stone for purposes. The Piraeus stone, a 4th-century BCE marble originally from Salamis and now in the Archaeological of Piraeus, inscribes multiple linear units including the Attic pous (approximately 0.301–0.322 m, varying by period), the Aeginan span (1.5 podes), and other multiples like the (1.5 podes), allowing ancient surveyors to verify measurements against official benchmarks. Such artifacts facilitated and by standardizing units across Attic and allied territories. Another related example is the Salamis metrological , which provides evidence for similar linear standards. In the Byzantine era, the pous persisted as the Byzantine foot (approximately 0.312 m), influencing architectural elements. For instance, the dome of spans 100 Byzantine feet, demonstrating the unit's continuity from into the medieval period, adapting to imperial contexts while maintaining ties to earlier metrology.

Modern Conversions and Uncertainties

The modern conversion of the ancient pous to metric units relies on extensive surveys of surviving artifacts, inscriptions, and architectural remains conducted primarily in the 19th and 20th centuries. The pous is generally estimated at 0.2957 meters, while the Aeginan (or Doric) pous measures approximately 0.333 meters; these averages stem from aggregated data on multiple standards, reflecting regional differences in ancient practice. Note that some architectural contexts, like the , suggest an pous of ~0.308 m based on direct measurements. Such conversions facilitate comparisons with contemporary systems but highlight the pous's variability across city-states. A foundational compilation informing these estimates is Friedrich Hultsch's 1882 work, Metrologicorum Scriptorum Reliquiae, which synthesized ancient textual references and early measurements of physical standards to derive average lengths, including an overall Greek foot around 0.308 meters with regional adjustments. More recent advancements, such as laser scanning and photogrammetry applied to sites like the Erechtheion on the Athenian Acropolis, have refined these figures by capturing sub-millimeter precision on structural elements. For instance, statistical analysis of Erechtheion dimensions using cosine quantogram methods yielded a local foot unit of 0.324–0.325 meters, suggesting the building employed a transitional or hybrid standard between Attic and Doric norms. Uncertainties in these conversions persist at ±1–2%, arising from natural variations in foot sizes among ancient populations, and on or stone standards over millennia, and environmental factors like during measurements. These margins underscore the challenges in standardizing ancient units, as individual artifacts—such as metrological reliefs—may represent local or temporary norms rather than universal ones. To approximate the pous length from a specific artifact, scholars apply the basic relation: \text{Pous length} \approx \frac{\text{artifact dimension in meters}}{\text{number of podes recorded}} This formula, used in both Hultsch's era and modern analyses, assumes accurate ancient documentation of podes but requires cross-verification with multiple examples to account for discrepancies.

Applications in Ancient Society

Architectural and Engineering Uses

The pous functioned as a primary modular unit in ancient Greek architecture and engineering, enabling precise proportions and standardization in construction projects. In Doric temples, column heights were typically designed as multiples of the pous to achieve harmonic ratios, with the Attic pous of approximately 0.296 meters serving as the standard for planning. For example, the columns of the Temple of Poseidon at Paestum reached heights of about 30 podes, emphasizing the order's sturdy and balanced form. Architects such as Ictinus employed the pous in grid-based systems for temple design, as seen in the , where exterior columns measured roughly 35 podes in height, allowing for scalable and replicable layouts across workshops and regional guilds. This modular approach ensured consistency in dimensions, from column diameters (often 5-6 podes) to intercolumniations, facilitating collaborative building efforts on large-scale religious structures. In contexts, the pous scaled up for like the connecting to , each approximately 40 (24,000 podes) in length, protecting naval access during conflicts. Similarly, the on the featured steps and ramps calibrated in 1-pous increments for functional and aesthetic uniformity, integrating the unit into both monumental gateways and utilitarian features. Harbor constructions at also relied on pous measurements for alignments and fortifications, underscoring its versatility in civic .

Roles in Trade, Daily Life, and Literature

In commerce, the pous served as a fundamental unit for standardizing the dimensions of and market infrastructure, facilitating fair exchange in bustling agoras across city-states like and . Amphorae, essential for transporting , wine, and other commodities, were often produced to heights of around 0.5 meters, allowing for efficient stacking and during sales; this consistency helped merchants verify capacity and prevent disputes over volume, as the vessel's cubic content aligned closely with multiples of the pous. Market stalls, regulated by officials such as the agoranomoi, were similarly proportioned using the pous to ensure uniform spacing and accessibility, promoting orderly in perishable and textiles. In everyday household life, the pous informed the scale of personal furnishings and apparel, reflecting its role as a practical measure derived from the . Beds (klinai) in and homes typically measured 6 to 8 podes in length (approximately 1.8 to 2.4 meters) and 3 podes in width (about 0.9 meters), accommodating one or two sleepers while fitting modest interior spaces; archaeological evidence from , such as the stuccoed in the Kotroni tomb at (2.30 x 0.90 meters), illustrates this standardization for comfort and portability. Clothing like the was tailored to , with lengths often spanning 4 to 6 podes from shoulder to ankle, enabling draped versatility in daily wear across social classes. These applications underscored the pous's integration into intimate routines, from reclining at symposia to arranging domestic layouts. Literary works frequently invoked the pous both literally and figuratively, embedding it in narratives of travel, rhythm, and human endeavor. , in describing geographical features and itineraries, equated the stadion—a common distance unit—to podes, using this relation to convey scales like coastal lengths or march routes, such as the Persian advance where subsidiary measurements implied foot-based reckoning for precision. In comedy, employed the term for humorous effect, as in Acharnians where a character's maimed pous symbolizes wartime mishaps and , exaggerating human frailty amid . Beyond and , the pous denoted the in , structuring verses in iambic or dactylic forms to mimic natural speech rhythms, as analyzed in rhythmic theory from the BCE onward. Culturally, it symbolized human scale in and , appearing as a metaphor for agency and vulnerability—evident in Aeschylus's , where feet represent trampling power or cursed mobility, and in Sophocles's , where the protagonist's name (Oidipous, "swollen-footed") evokes lifelong affliction as a measure of mortal limits.

Scholarly Analysis

Metrological and Mathematical Studies

Metrological and mathematical studies of the pous have employed statistical methods to reconcile variations in measured lengths from ancient artifacts and architectural remains, aiming to establish a standardized value amid regional discrepancies. Pioneering work by Friedrich Hultsch in his 1882 compilation of ancient metrological data provided foundational tables that aggregated textual and artifactual evidence, estimating the pous at approximately 0.296 meters based on cross-references to and equivalents. Modern analyses build on this by applying quantitative techniques, such as cosine quantogram analysis, to building dimensions from multiple sites. For instance, Jukka Pakkanen's 2001 study examined inscriptional data from the and in , using simulations to detect modular lengths, yielding a foot value of 0.324 meters with measurement noise tolerances up to ±30 mm. Regression-based averaging across over 50 architectural sites, incorporating Doric and Attic variants, has refined the mean pous length to 0.312 meters, highlighting a standard deviation of about 0.005 meters that accounts for constructional precision rather than systemic variation. Key scholars have further explored proportional geometry in Greek metrology. Hultsch's tables emphasized integer-based subdivisions. These studies prioritize seminal contributions, such as the of factors within the system. The pous is defined as 16 times the daktylos (finger breadth), a rational ratio preserved in ancient texts and artifacts: $1 \, \text{pous} = 16 \times \text{daktylos length} with an estimated variance \sigma \approx 0.005 \, \text{m} derived from statistical fits to modular data, ensuring compatibility with larger units like the pechys (, 1.5 pous). This equation underscores the system's reliance on whole-number multiples, facilitating precise scaling in contexts. Debates in these studies often center on rational versus irrational ratios in metrology, influenced by , which favored commensurable proportions to align measurements with cosmic . Pythagoreans viewed irrational numbers as disruptive to numerical order, promoting integer-based systems that dominated metrological practice, as seen in the avoidance of non-rational subdivisions in surviving standards. This perspective, echoed in Hultsch's analyses and modern interpretations, resolves discrepancies by assuming deliberate rationalization over empirical irregularities.

Archaeological and Historical Evidence

Archaeological evidence for the pous, the fundamental unit of length in ancient Greek metrology equivalent to the foot, primarily derives from physical artifacts and building dimensions uncovered in excavations across Greece. One of the most direct attestations is the Metrological Relief, a marble slab dated to the mid-5th century BCE, depicting a nude male figure with arms extended horizontally and vertically, inscribed with labels for linear units including the palmos (palm), daktylos (finger), spithamē (span), and pēchis (cubit), all scaled relative to the pous as the base module of approximately 0.296 meters in Attic usage. This relief, likely from a public weights and measures office (metreion) in Athens or a nearby city, illustrates the hierarchical subdivision of the pous into 16 daktyloi, providing tangible proof of standardized linear measurement in civic administration. Similar metrological standards have been recovered from the Athenian Agora, where bronze and stone rods and vessels from the 5th to 4th centuries BCE bear incised markings calibrated to the Attic pous, used for verifying trade goods and construction. Excavations at in yield indirect but compelling evidence through and . The city's grid layout, established in the late BCE and expanded in the 4th, features residential blocks and house interiors dimensioned in multiples of the pous (around 0.297 meters), as documented in the systematic digs led by David M. Robinson between 1928 and 1938. For instance, courtyard houses in Villa A exhibit rooms measuring 4 by 5 podes, with thresholds and doorways aligned to this module, indicating the pous's role in everyday building practices before the city's destruction in 348 BCE. These findings from over 100 excavated structures highlight regional variations, as the Olynthian pous differs slightly from the standard, reflecting local adaptations in northern Greek . Inscriptions from sacred and civic sites further corroborate the pous's application. At , oracle-related stones and temple foundations from the BCE incorporate measurements in the Doric pous (approximately 0.327 meters), as seen in the dimensions of the Temple of Apollo's crepidoma, which align with modules of 100 podes in length. Although no explicit "oracle stones" detail the unit, dedicatory inscriptions on bases and altars reference distances in podes for ritual placements, tying the unit to religious architecture. In , 3rd-century BCE decrees, such as IG II² 1013 (246/5 BCE), regulate market standards by specifying vessel capacities derived from linear dimensions in podes and daktyloi, enforcing uniformity in trade to prevent . Literary texts preserve textual evidence of the pous in practical and theoretical contexts. Euclid's Elements (c. 300 BCE), while primarily abstract, references podes in applied geometric problems, such as dividing lines into foot-length segments in Book II for demonstrating proportions, underscoring the unit's integration into mathematical education. Strabo's (c. 7 BCE–23 CE) frequently employs distances in —each comprising 600 podes—to describe itineraries, such as the 40-stadia length of the from to the Peiraeus (Book 9.1.16), linking the pous to geographic and . Byzantine codices offer later preservation of classical standards, transmitting metrological knowledge through compilations like the 10th-century Geoponica, which quotes earlier sources on agricultural measurements in podes for field layouts and channels, maintaining the and Doric variants into the medieval period. These manuscripts, often copied from Hellenistic exemplars, ensure continuity despite the empire's adoption of influences. A notable gap in the evidence exists for the pous prior to the 6th century BCE, with few artifacts surviving from the Geometric period; this scarcity suggests reliance on oral traditions or perishable materials for , as likely emerged with the advent of monumental and alphabetic writing around 800–600 BCE.