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.
212 results for "CEA" — page 4 of 11
W_3_13 — Zanzibar and East African Trade Networks: Spice, Slaves, and Swahili Culture
Zanzibar — the archipelago off the coast of modern Tanzania — and the Swahili coast stretching from southern Somalia to northern Mozambique were the nexus of one of history's great maritime trade networks, connecting the
W_3_15 — Satavahana and Deccan Kingdoms: South Indian Power and Trade
The Satavahana dynasty (c. 230 BCE–220 CE) and the broader network of Deccan kingdoms — including the Tamil-speaking Chola, Chera, and Pandya dynasties of the Sangam Age (c. 300 BCE–300 CE) — represent a crucial but ofte
W_2_29 — Satavahana and Deccan Kingdoms: South Indian Power and Trade
The Satavahana dynasty (c. 230 BCE–220 CE) and the broader network of Deccan kingdoms — including the Tamil-speaking Chola, Chera, and Pandya dynasties of the Sangam Age (c. 300 BCE–300 CE) — represent a crucial but ofte
W_2_24 — Chola Empire
The Chola Empire (c. 300 BCE – 1279 CE), with its imperial zenith under Rajaraja I (r. 985–1014 CE) and Rajendra I (r. 1014–1044 CE), was the most powerful naval and territorial state in medieval South and Southeast Asia
W_5_12 — Lapita Culture: Pacific Colonization and Pottery Horizon
The Lapita cultural complex (c. 1600/1500–500 BCE) was the foundational maritime culture that colonized Remote Oceania — transforming the Pacific from a barrier into a highway and ultimately giving rise to the Polynesian
ZH_3_02 — Polynesian Celestial Navigation: Star Compass and Wayfinding
The peoples of Polynesia — spread across the vast Polynesian Triangle (Hawaiʻi, Rapa Nui/Easter Island, Aotearoa/New Zealand), the largest ocean-spanning cultural region on Earth — accomplished the most remarkable feat o
C_5_17 — Pacific Navigation Mythology: Celestial Wayfinding in Oral Tradition
Pacific navigation mythology — the body of oral traditions, hero cycles, and cosmological narratives that encode celestial wayfinding knowledge within Polynesian, Micronesian, and Melanesian cultural frameworks — represe
ZF_2_22 — Hadal Zone & Deep-Sea Trench Ecology
The hadal zone — the deepest region of the ocean, comprising trenches and troughs exceeding 6,000 meters — represents Earth's last great frontier of biological exploration. Named after Hades, the Greek underworld, the ha
ZF_2_16 — Mesopelagic Twilight Zone Ecology
The mesopelagic zone (200–1,000 m depth) — the ocean's "twilight zone" — is the largest and least understood habitat on Earth, containing an estimated 1–10 billion tonnes of fish biomass, hosting the largest animal migra
ZF_2_18 — Abyssal Trench Biogeography: Life at the Deepest Frontiers
The hadal zone (depths below 6,000 m, named for Hades, the Greek underworld) — comprising the ~37 ocean trenches formed by tectonic subduction, totaling only ~0.25% of the global seafloor yet spanning a depth range equiv
ZF_2_07 — Marine Microbiology and Plankton
Marine microorganisms — bacteria, archaea, protists, viruses, and microscopic algae — constitute the invisible foundation of ocean life, driving global biogeochemical cycles, producing roughly half of the world's oxygen,
ZF_3_05 — Ancient Maritime Navigation and Wayfinding
Long before the compass, sextant, or chronometer, ancient maritime cultures navigated thousands of miles of open ocean using sophisticated systems of environmental observation — star paths, ocean swell patterns, wind shi
ZF_3_15 — Tsunami Cultural Memory: Indigenous Oral Records and Ancient Warnings
Tsunami cultural memory reveals that indigenous and traditional communities have preserved remarkably accurate records of catastrophic ocean events — sometimes for centuries or millennia — through oral traditions, storie
ZF_3_04 — USOs: Unidentified Submerged Objects and Trans-Medium Phenomena
Unidentified Submerged Objects (USOs) — anomalous craft or phenomena observed entering, exiting, or operating beneath the ocean surface — represent one of the most intriguing and least explained categories of unidentifie
ZF_3_11 — The Sargasso Sea, Bermuda Triangle, and Western Atlantic Anomalies
The Sargasso Sea is the only "sea" in the world defined not by coastlines but by ocean currents — a roughly elliptical region (~3.1 million km²) in the western North Atlantic, bounded by the Gulf Stream (west), North Atl
ZF_5_18 — Wave & Tidal Energy
Wave and tidal energy — the extraction of electrical power from ocean surface waves and gravitational tidal flows — represent a vast but largely untapped renewable energy resource: the International Energy Agency (IEA) e
ZF_5_20 — Wallace Line: Biogeographic Boundary and Deep-Time Distribution Patterns
The Wallace Line is a biogeographic boundary running through the Malay Archipelago, separating the fauna of Asia (Sunda Shelf) from that of Australasia (Sahul Shelf). First identified by Alfred Russel Wallace during his
ZF_5_19 — Coral Restoration Technology
Coral restoration technology — the active intervention to repair, regenerate, and enhance degraded coral reef ecosystems — has rapidly evolved from small-scale transplantation efforts into a multi-billion-dollar global e
ZF_5_11 — Abyssal Plains: Earth's Flattest Terrain and Deep Sedimentation
Abyssal plains — vast, flat expanses of sea floor at depths of 3,000–6,000 meters — are the largest habitat on Earth, covering approximately 54% of the planet's surface (more than all continents combined), yet they remai
ZF_4_12 — Underwater Acoustics and the SOFAR Channel
Sound is the dominant long-range information carrier in the ocean — electromagnetic radiation (light, radio) is rapidly absorbed in seawater, but sound can travel thousands of kilometers with remarkably little loss, maki
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