Evidence
Written Records
From Mesopotamian tablets to colonial-era censuses — written sources as evidence for population movement.
Written records provide direct evidence of migrations, deportations, conquest, and trade — but were produced only by literate societies and reflect the perspectives of those who controlled the means of writing. Peopling Earth evaluates written sources critically alongside material and genetic evidence.
Ancient Written Records
Ancient writing systems first emerged around 3200 BCE in southern Mesopotamia with cuneiform script on clay tablets, followed shortly by Egyptian hieroglyphs on papyrus and stone, and much later by Chinese oracle bone inscriptions near 1200 BCE. These records, along with later scripts such as Linear B in the Aegean and Maya glyphs in Mesoamerica, document events within complex societies that developed state-level administration and elite literacy. Because writing remained confined to a tiny fraction of the population until the first millennium BCE, the surviving corpus is heavily skewed toward royal annals, administrative tallies, diplomatic correspondence, and ritual texts rather than everyday life. Scholars extract information by combining epigraphic decipherment, linguistic analysis, and contextual archaeology. Texts can reveal named individuals, sequences of rulers, forced population movements such as Assyrian deportations, or long-distance trade partnerships attested in the Amarna letters of the fourteenth century BCE. They are less able to address deep-time demographic processes, genetic admixture, or the lives of non-literate groups, and they rarely preserve unbiased accounts of events that challenged the interests of the ruling class. Landmark contributions include Michael Ventris’s 1952 decipherment of Linear B, which demonstrated that Mycenaean palace economies were administered in an early form of Greek, and the correlation of Egyptian inscriptions at Medinet Habu with archaeological evidence for the Sea Peoples’ incursions around 1200 BCE. More recent work on Neo-Assyrian and Persian administrative tablets has refined understandings of deportation policies and their demographic consequences across the Near East. Nevertheless, written sources carry inherent uncertainties. Royal inscriptions frequently exaggerate victories or omit defeats, while the absence of texts in a region does not prove the absence of movement or contact. Debates persist, for example, over whether the biblical Exodus narrative preserves a historical kernel or represents later ideological construction, and over the degree to which early Chinese dynastic records accurately reflect the archaeological record of the Erlitou and Shang periods. When integrated with other lines of evidence, ancient texts supply chronological anchors and cultural details that material remains alone cannot provide. Genetic studies of Levantine populations, for instance, gain sharper historical framing when read alongside Egyptian and Mesopotamian references to the arrival or expulsion of particular groups. Conversely, isotopic and ancient-DNA data can test whether the scale of migrations described in texts matches biological reality, exposing both genuine population shifts and propagandistic inflation. Current frontiers involve the application of machine-learning tools to fragmentary tablet corpora and the ongoing decipherment of still-undeciphered scripts such as Linear A. Even with these advances, written records will remain a partial and relatively recent window onto human prehistory, most powerful when their elite perspectives are cross-checked against the broader archaeological, linguistic, and biomolecular record.
Epigraphy and Inscriptions
Epigraphy emerged as a systematic discipline in the early modern period, building on centuries of observations by travelers and antiquarians who noted carved texts across the ancient Near East, Mediterranean, and beyond. Researchers examine inscriptions on stone, metal, pottery, and other durable media that were created from the rise of writing systems around 3200 BCE in Mesopotamia and Egypt onward. The method relies on careful documentation through photography, rubbings, and digital imaging, followed by philological analysis to reconstruct grammar, vocabulary, and historical context. Bilingual or multilingual inscriptions have proven especially powerful, as seen in the Behistun relief deciphered by Henry Rawlinson in the 1830s and 1840s, which aligned Old Persian with Elamite and Akkadian and opened cuneiform studies. Such texts supply direct evidence of administrative practices, religious dedications, legal codes, and personal identities at fixed locations and moments. They complement archaeological finds by revealing the languages and ethnic affiliations of people who left material traces, while linguistic patterns in inscriptions can be cross-checked against ancient DNA studies of associated burials. For instance, Greek mercenary names recorded in Egyptian and Persian contexts align with isotopic and genetic data indicating long-distance mobility during the first millennium BCE. Yet epigraphy cannot address periods before writing or regions where perishable materials dominated record-keeping, and it often reflects only the perspectives of literate elites rather than entire populations. Scholars have used inscriptions to trace the spread of scripts and the movement of communities, such as the distribution of Celtic names in Roman Britain or Semitic personal names among traders in Old Kingdom Egypt. These records help evaluate whether genetic clusters identified through ancient DNA correspond to self-identified cultural groups, though researchers caution that names can be adopted or imposed without reflecting ancestry. Landmark projects, including the Corpus Inscriptionum Semiticarum and ongoing work on Maya hieroglyphs by epigraphers such as Tatiana Proskouriakoff’s successors, demonstrate how inscriptions illuminate state formation and ritual calendars that material culture alone leaves ambiguous. Current frontiers include computational approaches to damaged texts and integration with satellite mapping of inscription sites, yet limitations persist because many inscriptions remain undeciphered and survival favors monumental rather than everyday writing. When combined with fossil, linguistic, and genetic evidence, epigraphy strengthens reconstructions of migration routes and identity formation, offering named individuals and dated events that anchor broader narratives of human dispersal and interaction across prehistory and early history.