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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.

1,119 results for "AI winter" — page 21 of 56

W_5_07 World Civilizations

W_5_07 — Sami Shamanism and Circumpolar Traditions

The circumpolar world — the vast band of Arctic and subarctic territory stretching from Scandinavia across Siberia to Alaska, Canada, and Greenland — is home to indigenous peoples whose spiritual traditions represent som

Sami Saami Lapland Sápmi noaidi joik
W_5_04 World Civilizations

W_5_04 — Sufi Mysticism and Islamic Esotericism

Sufism (Arabic: tasawwuf) — the mystical/esoteric dimension of Islam — represents one of humanity's most profound traditions of direct experiential knowledge of the Divine (ma'rifa/gnosis). While orthodox Islam emphasize

Sufism tasawwuf mysticism dhikr fana baqa
W_5_33 Credible World Civilizations

W_5_33 — Khazar Khaganate: Turkic Empire and Religious Conversion

The Khazar Khaganate (c. 650–1048 CE) was a major Turkic empire that dominated the steppe and steppe-forest region between the Caspian Sea, the Black Sea, the Caucasus Mountains, and the Volga River — controlling key seg

Khazar Khaganate Turkic Judaism conversion Caspian
W_5_03 World Civilizations

W_5_03 — Mongol Tengrism and Central Asian Shamanism

Tengrism is one of the world's oldest continually practiced sky-god religions, centered on Möngke Tengri ("Eternal Blue Sky") as the supreme cosmic deity. Originating among the Turkic-Mongol peoples of the Central Asian

Tengrism Tengri Mongolia Genghis Khan Chinggis yurt
W_5_10 Verified World Civilizations

W_5_10 — Tamil Sangam Civilization and Dravidian Heritage

The Sangam period (c. 3rd century BCE – 3rd century CE, with literary traditions extending to ~5th century CE) represents the earliest extensively documented phase of Tamil civilization in southern India — a cultural, li

Sangam literature Tamil Sangam Dravidian ancient Tamil Tamilakam Chera
W_5_11 Credible World Civilizations

W_5_11 — Byzantine Empire: Constantinople, Orthodoxy, and East Roman Legacy

The Byzantine Empire (c. 330–1453 CE) — the continuation of the eastern half of the Roman Empire, centered on Constantinople (modern Istanbul, founded as Byzantium, refounded by Constantine I in 330 CE) — endured for ove

Byzantine Constantinople Eastern Roman Empire Justinian Hagia Sophia Theodora
W_5_24 Credible World Civilizations

W_5_24 — Civilization Collapse & Systems Fragility

Civilizational collapse — the rapid, significant decline of a complex society's political, economic, and social institutions — is a recurring pattern in human history. Major examples include the Western Roman Empire (476

collapse Bronze Age collapse societal fragility complexity theory Tainter Diamond
W_5_08 Verified World Civilizations

W_5_08 — Mongol Empire and Nomadic Civilization

The Mongol Empire (1206–1368 CE) was the largest contiguous land empire in human history, stretching from Korea to Hungary at its peak under Genghis Khan's successors. Arising from the unification of nomadic Turko-Mongol

Mongol Empire Genghis Khan Chinggis Khan Pax Mongolica Silk Road steppe nomads
W_5_13 Credible World Civilizations

W_5_13 — Mississippian Decline: Cahokia Collapse and Abandonment Theories

Cahokia — the largest pre-Columbian city north of Mexico, located in the American Bottom floodplain of the Mississippi River near modern-day St. Louis, Missouri/East St. Louis, Illinois — rose rapidly around 1050 CE to b

Mississippian Cahokia collapse abandonment mound city depopulation
W_5_15 Credible World Civilizations

W_5_15 — Aboriginal Australian Civilizations: 65,000 Years of Continuous Culture

Aboriginal Australians represent the oldest continuous cultural tradition in the world — with archaeological evidence of human occupation of the Australian continent dating back at least 65,000 years (Madjedbebe rock she

Aboriginal Australia Dreamtime Dreaming songlines rock art
W_5_06 World Civilizations

W_5_06 — Siberian Shamanism and the Origin of the Word 'Shaman'

Siberian shamanism is the mother tradition from which the very word "shaman" enters Western scholarship — derived from the Tungusic (Evenki) term šaman. This vast, diverse tradition spans the taiga and tundra from the Ur

Siberian shamanism Tungusic shaman etymology saman drum trance
ZH_4_02 Credible Archaeoastronomy

ZH_4_02 — Precession in Ancient Culture: Hamlet's Mill Thesis

Hamlet's Mill: An Essay on Myth and the Frame of Time (1969), by MIT historian of science Giorgio de Santillana and ethnologist Hertha von Dechend, is one of the most intellectually ambitious — and controversial — works

precession axial precession precession of the equinoxes Hamlet's Mill de Santillana von Dechend
ZH_3_02 Verified Archaeoastronomy

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

Polynesian navigation celestial navigation star compass wayfinding Hōkūleʻa Mau Piailug
ZH_3_16 Verified Archaeoastronomy

ZH_3_16 — Polynesian Star Compass: Celestial Navigation of the Pacific

The Polynesian star compass represents one of humanity's most sophisticated non-instrument navigation systems — enabling deliberate, repeatable voyages across thousands of miles of open Pacific Ocean centuries before Eur

Polynesian navigation star compass Mau Piailug wayfinding Hōkūleʻa Polynesian Voyaging Society
ZH_3_22 Credible Archaeoastronomy

ZH_3_22 — Medicine Wheel Astronomy

Medicine wheels are large stone structures found across the northern Great Plains and Rocky Mountain front ranges of North America, from Wyoming and Montana to Saskatchewan and Alberta, consisting of central cairns with

medicine wheel Bighorn Moose Mountain cairn solstice heliacal rising
ZH_3_07 Verified Archaeoastronomy

ZH_3_07 — Celestial Navigation in the Pacific: Micronesian Stick Charts

The peoples of Micronesia — particularly the Marshall Islands and the Caroline Islands — developed some of the most sophisticated non-instrument navigation systems in human history. While Polynesian navigation (covered i

Micronesia stick charts Marshall Islands rebbelib mattang meddo
ZH_3_18 Credible Archaeoastronomy

ZH_3_18 — Polynesian Star Navigation and Wayfinding

Polynesian star navigation is the non-instrument celestial wayfinding system that enabled the colonization of the Polynesian Triangle — the vast oceanic region bounded by Hawaiʻi, Rapa Nui (Easter Island), and Aotearoa (

polynesian-navigation celestial-navigation wayfinding star-compass oceanic-voyaging hokulea
ZH_5_17 Credible Archaeoastronomy

ZH_5_17 — Ancient Variable Star Observations (Algol)

Algol (Beta Persei, the "Demon Star") — a second-magnitude eclipsing binary star in the constellation Perseus that dims dramatically every 2.867 days as its fainter companion transits the primary star — may have been rec

Algol variable star eclipsing binary Beta Persei ancient observation Cairo Calendar
ZH_5_06 Verified Archaeoastronomy

ZH_5_06 — Horizon Astronomy: Skyline Observations, Foresights, and Horizonal Calendars

Horizon astronomy — the practice of observing where celestial bodies rise and set along the natural skyline — is the most ancient, most widespread, and most practical form of astronomical observation. Unlike meridian tra

horizon astronomy foresight backsight sunrise sunset horizon calendar
ZH_5_25 Verified Archaeoastronomy

ZH_5_25 — Polynesian Star Navigation and Pacific Migration

Polynesian wayfinding — the ability to navigate thousands of kilometers of open ocean without instruments — represents one of humanity's supreme intellectual achievements. Between c. 3,000 BCE and 1250 CE, Austronesian-s

polynesian navigation star compass wayfinding pacific migration mau piailug nainoa thompson