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Search 3,721 documents across 34 fields — every claim tier-rated by evidence

3,721 Documents 34 Sections 43,625 Citations 34,852 Keywords Indexed 4 Evidence Tiers

3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.

3 results for "patrilineal"

L_3_04 Verified Genetics & Origins

L_3_04 — Y-Chromosome Phylogeny and Patrilineal Deep History

The Y chromosome, transmitted exclusively from father to son, provides a uniquely informative window into patrilineal human history.

Y-chromosome haplogroup patrilineal Y-chromosomal Adam A00 R1b

ZC_4_02 Verified Social Science

ZC_4_02 — Kinship Systems and Social Organization Across Cultures

Kinship — the system of social relationships and categories through which human societies classify relatives, define obligations, regulate marriage, organize inheritance, and structure political authority — is the founda

kinship descent patrilineal matrilineal bilateral cognatic

F_4_20 Verified Lost Connections

F_4_20 — Yamnaya Expansion: Steppe Herders and Indo-European Spread

The Yamnaya culture (c. 3300–2600 BCE) — a semi-nomadic pastoral society of the Pontic-Caspian steppe (modern Ukraine, southern Russia, and western Kazakhstan) — has emerged from ancient DNA studies as one of the most co

Yamnaya steppe Pontic-Caspian Indo-European migration pastoralism

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