Research Posts & Digests
Systematic evaluation, synthesis, and compression of automated literature and data surveys.
What does "OIT vs. AMT" mean? (Out of India vs. Aryan Migration Theory)
OIT vs. AMT compares the empirical models of the Out of India Theory (OIT) and the Aryan Migration Theory (AMT / Steppe Hypothesis):
- OIT (Out of India Theory): Proposes that the Indo-European language family originated within the Indian subcontinent and subsequently expanded westward across Eurasia.
- AMT (Aryan Migration Theory): Represents the linguistic and archaeogenetic consensus model, positing that Indo-Iranian speakers migrated into northwestern South Asia from the Eurasian steppe via Central Asia during the 2nd millennium BCE.
What does "IVC" stand for? (Indus Valley Culture / Harappan Civilization)
IVC (Indus Valley Culture / Civilization) refers to the Bronze Age Indus Civilization (c. 3300–1300 BCE) spanning northwestern South Asia (e.g. Harappa, Mohenjo-daro, Dholavira, Rakhigarhi, Lothal):
- Focus of Monthly Reports: Continuous synthesis of emerging archaeological excavations, radiocarbon chronologies, ancient DNA (aDNA) samplings, paleoclimatic data (sediment cores, monsoon dynamics), as well as studies on trade networks, urbanism, and deurbanization.
- Abbreviation: Across articles and metadata, the standard scholarly abbreviation IVC is uniformly used.
- IVC: Monthly Report October 2026
Monthly research report on new excavations in Mohenjo-Daro (Kot Diji city wall), aDNA pipelines from Rakhigarhi, computational decipherment of the Indus script, and paleoclimate megadroughts.
- Mohenjo-Daro Redating: 7-meter-thick rampart structure identified as monumental city fortification of the Kot Diji phase (ca. 3300–2600 BCE).
- Rakhigarhi Mound 7: AnSI and BSIP initiate aDNA, strontium, and oxygen isotope analyses on newly recovered skeletons.
- Paleoclimate & De-Urbanization: 113-year megadrought in the 2nd millennium BCE accelerated an orderly eastward settlement shift.
- OIT vs AMT: Monthly Report September 2026
Monthly research report on Zenodo preprints concerning Punjabi genetics, Syrian dental finds with South Asian mitogenomes, and Burzahom Neolithic.
- Zenodo preprint on Punjabi genetics: Separation of patrilineal markers (R1a) and ethno-linguistic identity.
- Indus-Mesopotamia contact: Mitochondrial haplogroups M4b1, M49, and M61 in Syrian teeth (Tell Ashara).
- Burzahom mitogenome study: Complex regional continuity in Kashmir.
- OIT vs AMT: Monthly Report August 2026
Monthly report on Ladakh genomes from Science Advances, aDNA initiatives in Tamil Nadu (Keeladi/Adichanallur), and methodological limits of population genetics in South Asia.
- Science Advances: Ten genomes from the Old Lady Spider Cave in Ladakh show a 50:50 Tibetan-North Indian admixture approximately 2,800 years ago.
- aDNA Offensive in Tamil Nadu: Around 75,000 preliminary markers from Konthagai/Keeladi, Adichanallur, and Sivagalai.
- Skeletal sampling in Rajghat (Varanasi) by BHU for radiocarbon and isotope analyses.
- OIT vs AMT: Monthly Report July 2026
Monthly report on the human genetics study of the Sindhi population, burials from Rakhigarhi Mound 7, and methodological model assumptions in qpAdm and ADMIXTURE.
- Human Genetics (2026): Population genetic study models Sindhi genealogy with ~60–66% Indus Periphery component plus Steppe and AASI components.
- Rakhigarhi Mound 7: ASI hands over burial skeletons to AnSI for multimodal aDNA and isotope analyses.
- Discussion on model assumptions: qpAdm sensitivity and sampling bias with extremely low Harappan aDNA yield.
- OIT vs AMT: Monthly Report June 2026
Monthly report on new burial finds by the ASI in Rakhigarhi (eight skeletons, grave goods), sample transfers to BSIP Lucknow, and the status of aDNA pipelines.
- ASI unearths 8 Harappan-era skeletons: New burials with extensive ceramic grave goods recovered in Rakhigarhi.
- Sample forwarding to BSIP Lucknow for DNA extraction, isotope analysis, and facial reconstruction.
- Structural reference framework: Established picture of Bronze Age steppe admixture remains scientific consensus.