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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.

3,447 results for "Guelb er Richat" — page 109 of 173

ZH_4_01 Verified Archaeoastronomy

ZH_4_01 — Stonehenge Astronomical Alignments: Solar, Lunar, Eclipse

Stonehenge, the iconic late Neolithic/early Bronze Age monument on Salisbury Plain, Wiltshire, England (constructed in phases from c. 3000–2000 BCE), has been at the center of archaeoastronomical debate since the 18th ce

Stonehenge solstice alignment midsummer sunrise midwinter sunset Heel Stone Station Stones
ZH_4_03 Verified Archaeoastronomy

ZH_4_03 — Star Myths and Constellation Stories Across Cultures

Every human culture that has observed the night sky has organized the visible stars into patterns — constellations, asterisms, and star groups — and woven them into narrative frameworks that encode cosmological beliefs,

constellation star myth asterism Ursa Major Orion Pleiades
ZH_4_06 Verified Archaeoastronomy

ZH_4_06 — Comets and Meteors in Cultural History: Omens to Science

Throughout human history, comets — with their dramatic, unpredictable appearances and luminous tails stretching across the sky — have been among the most powerful celestial omens, inspiring fear, wonder, and interpretive

comet meteor meteorite fireball bolide shooting star
ZH_4_09 Verified Archaeoastronomy

ZH_4_09 — Astronomical Petroglyphs and Rock Art

Humans have carved, painted, and pecked celestial imagery into rock surfaces for at least 10,000 years — and possibly far longer. Astronomical petroglyphs and pictographs are found on every inhabited continent: images of

petroglyphs rock art archaeoastronomy supernova sun dagger star maps
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_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_06 Verified Archaeoastronomy

ZH_3_06 — Andean Dark Constellations and Milky Way Astronomy

Andean astronomical traditions, particularly as documented in Quechua-speaking communities of Peru and Bolivia and inferred from colonial-era Spanish accounts of Inca cosmology, are distinguished by a feature unique in w

dark constellation dark cloud constellation Andean astronomy Inca astronomy Milky Way Mayu
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_20 Credible Archaeoastronomy

ZH_3_20 — The Inca Ceque System: Astronomical Lines, Sacred Geography & Cusco's Cosmic Order

The ceque system (zeq'e, "line" or "boundary" in Quechua) — a network of 41 conceptual lines radiating outward from the Coricancha (Temple of the Sun) in Cusco, Peru, connecting approximately 328 sacred sites (huacas: sp

ceque-system inca-astronomy cusco huaca sightline astronomical-alignment
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_00 Archaeoastronomy

ZH_3_00 — Americas Pacific Indigenous: Subfolder Summary

ZH_3_03 Verified Archaeoastronomy

ZH_3_03 — Aboriginal Australian Astronomy: Seasonal Star Knowledge

Australian Aboriginal peoples developed one of the oldest continuous astronomical traditions on Earth — an integrated system of sky knowledge extending back at least 50,000 years of habitation on the Australian continent

Aboriginal Australian astronomy ethnoastronomy songlines Dreaming Emu in the Sky dark constellation
ZH_3_14 Credible Archaeoastronomy

ZH_3_14 — Nighttime Navigation Without Instruments: Stars, Moon, and Memory

For most of human history, navigators crossing deserts, oceans, and arctic wastes found their way using the stars, the Moon, the Sun's position, and memory — without magnetic compasses, chronometers, or sextants. Non-ins

celestial navigation star navigation non-instrumental Polynesian Arab Viking
ZH_5_21 Verified Archaeoastronomy

ZH_5_21 — Precession of the Equinoxes: The Great Year and Ancient Awareness

The precession of the equinoxes — the slow westward drift of the vernal equinox point along the ecliptic, completing a full cycle in approximately 25,772 years (the "Great Year" or "Platonic Year") — is the longest astro

precession of equinoxes axial precession great year Hipparchus zodiacal ages pole star
ZH_5_00 Archaeoastronomy

ZH_5_00 — Methods Modern Archaeoastronomy: Subfolder Summary

ZH_5_16 Verified Archaeoastronomy

ZH_5_16 — Eclipse Prediction and the Saros Cycle

The Saros cycle — a period of approximately 6,585.3 days (18 years, 11 days, 8 hours) after which the Sun, Moon, and lunar nodes return to nearly identical relative positions — has been the primary tool for eclipse predi

Saros-cycle eclipse-prediction Babylonian-astronomy Thales-eclipse lunar-nodes eclipse-periodicity
ZH_5_11 Credible Archaeoastronomy

ZH_5_11 — Solar Eclipse as Political Event: Thales, Omens, and Dynastic Legitimacy

Throughout history, solar eclipses — sudden, dramatic, and seemingly unnatural — have been interpreted not merely as astronomical events but as political signs, divine warnings, and instruments of power. The most famous

solar eclipse political event omen Thales eclipse prediction dynastic legitimacy
ZH_5_04 Verified Archaeoastronomy

ZH_5_04 — Precession of the Equinoxes: Hipparchus, Axial Wobble, and the Great Year

The precession of the equinoxes — the slow, continuous westward shift of the equinoctial points (where the ecliptic crosses the celestial equator) along the ecliptic — is one of the most consequential astronomical phenom

precession equinoxes Hipparchus axial wobble Platonic year Great Year
ZH_5_20 Verified Archaeoastronomy

ZH_5_20 — Maya Calendar Systems: Cycles of Time and Cosmic Order

The Maya calendar system represents one of the most sophisticated timekeeping frameworks developed by any civilization, integrating multiple interlocking cycles to track sacred, civil, agricultural, and cosmic time over

Maya calendar Long Count Tzolkin Haab Calendar Round Maya astronomy
ZH_2_05 Verified Archaeoastronomy

ZH_2_05 — Japanese and Korean Astronomical Traditions

The astronomical traditions of Japan and Korea developed in close dialogue with Chinese astronomy — but were far from mere copies. Both civilizations adapted Chinese astronomical models, instruments, and calendrical meth

Japanese astronomy Korean astronomy Tenmon Cheomseongdae Nihon Shoki guest stars