RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
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.
21 results for "Nahui Ollin" — page 1 of 2
C_3_05 — Aztec Cosmology and the Five Suns
Aztec (Mexica) cosmology describes the universe as having passed through four previous ages (Suns), each created and destroyed by different gods through catastrophic events — jaguars, wind, fire-rain, and flood. We live
E_4_06 — Kali Yuga / World Ages Mathematics
This document examines Kali Yuga / World Ages Mathematics, a topic within the Cataclysms and Chronology research area. Key areas of investigation include The Four Yugas — Structure and Duration, Higher-Order Cycles, Sour
ZB_3_01 — Pollination Ecology: Plant-Pollinator Coevolution and Seed Dispersal
The mutualism between flowering plants and their pollinators is one of the most consequential partnerships in the history of life. Approximately 87.5% of wild flowering plants and 75% of food crops depend on animal polli
ZB_5_18 — Insect Decline Crisis
The global insect decline — sometimes called the "insect apocalypse" in popular media — refers to accumulating evidence that insect populations, biomass, and diversity are decreasing at alarming rates across many regions
Z_1_03 — Human Genome Project and Its Legacy
The Human Genome Project (HGP), launched in 1990 and completed in 2003, was the largest coordinated biological research effort in history — a $3 billion, 13-year international collaboration to sequence all ~3.2 billion b
ZG_5_06 — Lexicography: Dictionary Making from Johnson to Digital
Lexicography — the art and science of dictionary making — is among the oldest scholarly enterprises concerned with language, stretching from ancient Mesopotamian word lists (Sumerian-Akkadian bilingual glossaries, c. 230
J_4_14 — Ancient Beekeeping & Apiculture Technology
Beekeeping (apiculture) ranks among humanity's oldest managed food-production technologies, with evidence of human-bee relationships extending back at least 9,000 years. Rock art in the Cueva de la Araña (Spider Cave) ne
ZB_1_11 — Predator-Prey Dynamics and Coevolution
Predator-prey dynamics are among the most fundamental processes structuring ecological communities, driving evolutionary arms races, and shaping biodiversity. The Lotka-Volterra equations (Lotka, 1925; Volterra, 1926) pr
ZB_5_16 — Ecosystem Services Quantification
Ecosystem services quantification attempts to assign monetary or biophysical values to the benefits that natural systems provide to humanity — including pollination, water purification, carbon sequestration, flood regula
ZB_3_09 — Mutualism and Cooperation in Nature
Mutualism — an interspecific interaction in which both partners benefit — is one of the most important ecological relationships on Earth, underpinning ecosystem function from coral reefs to forests to the human gut. The
ZC_5_01 — Digital Anthropology and Online Communities
Digital anthropology — the study of human social life as it is mediated, shaped, and transformed by digital technologies — has emerged as one of the most rapidly growing subfields in the social sciences as online life ha
ZC_1_15 — Sociology of Emotions
Sociology of emotions examines how emotions are socially shaped, managed, and structured — challenging the assumption that feelings are purely biological or individual. Arlie Russell Hochschild (The Managed Heart, 1983)
ZC_1_14 — Social Media Psychology
Social media usage is now near-universal among adolescents and young adults in developed nations (95% of US teens, Pew 2023), making its psychological effects one of the most debated topics in contemporary psychology. Th
T_5_12 — Media Psychology: Screen Effects, Social Media, and the Psychology of Digital Life
Media psychology — the study of how media (television, film, video games, social media, smartphones) affect cognition, emotion, behavior, and well-being — has become one of the most publicly debated areas of psychology,
D_1_21 — Cahokia & Monks Mound: North America's Largest Pre-Columbian Settlement
Cahokia, located near present-day Collinsville, Illinois, was the largest and most complex pre-Columbian settlement north of Mexico, reaching its peak between approximately 1050 and 1200 CE during the Mississippian cultu
D_1_17 — Cahokia & Monks Mound
Cahokia, located near present-day Collinsville, Illinois, was the largest pre-Columbian settlement north of Mexico and the center of Mississippian culture. At its peak around 1050–1200 CE, the city covered approximately
D_3_10 — Derinkuyu and Cappadocian Underground Cities
Derinkuyu — the deepest known underground city in Cappadocia, central Turkey — extends approximately 85 meters (280 feet) below the surface across 18 recognized levels (8 fully excavated and open to visitors), with the c
P_5_08 — Philosophy of History
Philosophy of history asks whether history has a pattern, direction, or meaning — and how historical knowledge itself is possible. Two broad orientations have competed since antiquity: cyclical views (civilizations rise
R_4_05 — Seed Plants and Angiosperm Evolution
Angiosperms (flowering plants) are the most species-rich and ecologically dominant group of land plants, comprising roughly 300,000–400,000 species — over 90% of all living plant species. Their origin and rapid diversifi
R_4_15 — Insect Evolution: Flight, Metamorphosis, and Mega-Diversity
Insects (class Insecta) are the most species-rich group of organisms on Earth — with over 1 million described species and an estimated 5–10 million total, they account for approximately 80% of all known animal species. T
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