RESEARCH BASE

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.

944 results for "West African Iron Age" — page 3 of 48

Z_1_06 Verified Molecular Biology

Z_1_06 — Sex Determination Genetics

Sex determination — the biological process that establishes whether an organism develops as male, female, or an alternative reproductive type — employs remarkably diverse mechanisms across the tree of life. In placental

sex determination sex chromosomes X chromosome Y chromosome SRY gene X-inactivation
D_2_16 Credible Sites & Artifacts

D_2_16 — Tartessos & Iberian Peninsula Civilizations

Tartessos was a semi-legendary Bronze Age and Iron Age civilization centered in the lower Guadalquivir River valley of southwestern Iberia (modern Andalusia and southern Portugal), flourishing approximately 1100–550 BCE.

Tartessos Tartessian Iberia Phoenician Carambolo treasure Atlantic Bronze Age
L_4_05 Verified Genetics & Origins

L_4_05 — Paleogenomics Methods and Ancient DNA

Paleogenomics — the study of ancient genomes — has transformed archaeology, anthropology, and evolutionary biology over the past two decades, recognized by the 2022 Nobel Prize in Physiology or Medicine awarded to Svante

paleogenomics ancient DNA aDNA ancient DNA extraction petrous bone DNA degradation
L_2_18 Verified Genetics & Origins

L_2_18 — Archaic Admixture in Africa (Ghost Populations)

While Neanderthal and Denisovan admixture in non-African populations has been well-documented since Svante Pääbo's landmark 2010 Neanderthal genome paper, evidence for archaic admixture within Africa represents a more re

archaic admixture ghost population African genetics ancient DNA introgression archaic hominin
L_3_06 Credible Genetics & Origins

L_3_06 — Genetics of Intelligence and Cognition

The genetics of intelligence — one of the most studied yet contentious areas in behavioral genetics — has established that cognitive ability, as measured by standardized tests, has a substantial heritable component (~50–

intelligence genetics cognitive ability IQ heritability GWAS intelligence polygenic score educational attainment
L_5_08 Verified Genetics & Origins

L_5_08 — Ancient DNA from Sediments: Cave Dirt Genomics

One of the most revolutionary methodological advances in ancient DNA (aDNA) research has been the recovery of hominin DNA directly from cave sediments — without any bones or teeth. This technique, pioneered by Matthias M

sediment DNA environmental DNA eDNA cave sediment ancient DNA metagenomic
ZE_3_15 Verified Ethics & Applied Philosophy

ZE_3_15 — Ethics of Climate Justice: Intergenerational, Global, and Species Equity

Climate justice addresses the ethical dimensions of climate change — arguably the most consequential moral challenge facing humanity. The crisis is fundamentally unjust in three dimensions: globally, the nations least re

climate justice intergenerational ethics global justice species equity climate change carbon emissions
ZA_1_05 Verified Physics & Quantum

ZA_1_05 — Quantum Decoherence and the Measurement Problem

Quantum decoherence explains how the strange superposition behavior of quantum mechanics transitions into the definite, classical-looking world we observe — without requiring a mysterious "collapse" postulate. When a qua

quantum decoherence measurement problem wave function collapse quantum to classical transition environment-induced decoherence einselection
A_1_12 Verified Foundations

A_1_12 — Amarna Letters: Bronze Age International Diplomacy

The Amarna Letters are a corpus of approximately 382 cuneiform clay tablets discovered in 1887 at Tell el-Amarna in Middle Egypt — the site of Akhenaten's short-lived capital, Akhetaten. Dating to approximately 1360–1332

Amarna letters Tell el-Amarna Bronze Age diplomacy cuneiform Akkadian lingua franca pharaoh correspondence
U_1_15 Credible Art, Music & Culture

U_1_15 — Jazz: Improvisation, African Roots, and Cultural Revolution

Jazz — America's most original and influential art form — emerged in the early 20th century from the convergence of African rhythmic and improvisational traditions, African American blues and work songs, European harmony

jazz improvisation blues swing bebop cool jazz
U_3_18 Verified Art, Music & Culture

U_3_18 — Ancient Metallurgy and Material Innovation

Ancient metallurgy — the extraction, alloying, and shaping of metals from raw ores — was among the most transformative technological achievements of human civilization, enabling new tools, weapons, agricultural implement

ancient-metallurgy bronze-age iron-smelting copper alloys bloomery
U_5_12 Credible Art, Music & Culture

U_5_12 — Art Patronage: Medici, Mughal Courts, and the Economics of Culture

Art patronage — the financial, institutional, or social support of artistic production by individuals, courts, religious bodies, states, or corporations — has been the primary economic engine of art creation for most of

patronage Medici Renaissance Mughal court art commission
U_4_04 Verified Art, Music & Culture

U_4_04 — Masks & Performance Traditions Worldwide

Masks are among the most universal cultural artifacts in human history, appearing independently on every inhabited continent and serving functions spanning religious ritual, ancestor communication, healing, social contro

masks masquerade performance ritual theater Greek tragedy Noh
X_5_08 Credible Medicine & Healing

X_5_08 — One Health: Human, Animal, and Environmental Health Interconnected

One Health is an integrated, multidisciplinary approach that recognizes that the health of humans, animals, and ecosystems is fundamentally interconnected. The concept — formalized in the early 21st century but building

One Health zoonosis zoonotic disease spillover veterinary medicine wildlife health
X_1_17 Verified Medicine & Healing

X_1_17 — African Traditional Medicine

African traditional medicine (ATM) encompasses the diverse healing systems of sub-Saharan Africa, serving approximately 80% of the continent's population as a primary or complementary healthcare resource (WHO estimate).

African traditional medicine sangoma herbalism ethnobotany traditional healers WHO
W_1_18 Verified World Civilizations

W_1_18 — Byzantine Iconoclasm: Theology, Politics, and Image Destruction

Byzantine Iconoclasm (c. 726–843 CE) was the most consequential theological and political crisis in the Eastern Roman Empire's history, centered on whether the creation and veneration of religious images (eikōnes) of Chr

Byzantine iconoclasm iconodule icon Leo III Irene
W_1_14 Credible World Civilizations

W_1_14 — Carthage: Punic Civilization, Navigation, and Tophet

Carthage (from Phoenician Qart-ḥadašt — "New City") was a Phoenician colony founded c. 814 BCE on the coast of modern-day Tunisia that grew into the dominant maritime and commercial power of the western Mediterranean — a

Carthage Punic Phoenician Tophet child sacrifice Hannibal
ZH_4_07 Verified Archaeoastronomy

ZH_4_07 — African Astronomical Knowledge: Mursi, Borana, Nabta Playa

Africa — the continent of humanity's origin — has produced some of the world's oldest, most diverse, and most under-documented astronomical traditions. From the possible megalithic calendar circle at Nabta Playa in the e

African astronomy Borana calendar Mursi Nabta Playa stone circle Saharan astronomy
ZH_2_17 Credible Archaeoastronomy

ZH_2_17 — Islamic Golden Age Astronomy: Observation, Innovation, and the Preservation of Knowledge

Islamic astronomy — the astronomical tradition developed in the Islamic world from the 8th through the 15th centuries CE — represents one of the most productive and consequential scientific enterprises in human history,

Islamic astronomy Golden Age al-Battani al-Tusi Maragha observatory
ZH_1_04 Verified Archaeoastronomy

ZH_1_04 — Nebra Sky Disk: Bronze Age Star Map Analysis

The Nebra sky disk (Himmelsscheibe von Nebra) is a bronze disk approximately 30 cm in diameter, decorated with gold-leaf appliqué representing the sun (or full moon), a crescent moon, stars (including a cluster interpret

Nebra sky disk Bronze Age star map Pleiades crescent moon sun boat