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.

11 results for "Ruggles"

M_3_10 Credible Forbidden Archaeology

M_3_10 — Ancient Astronomical Precision: Were They Really That Accurate?

Claims of extraordinary astronomical precision in ancient monuments — temples aligned to specific stars, pyramids oriented to true north within fractions of a degree, megalithic sites encoding the 25,920-year precession

astronomical alignment ancient precision archaeoastronomy Thom Ruggles Aveni
M_3_07 Verified Forbidden Archaeology

M_3_07 — Stone Age Precision — Avebury, Carnac, and European Megaliths

The European megalithic tradition — spanning from approximately 4800 to 1500 BCE across Atlantic Europe (Iberia, France, the British Isles, Scandinavia, and the central Mediterranean) — produced tens of thousands of monu

Avebury Carnac megalith standing stone alignment menhir
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_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_21 Verified Archaeoastronomy

ZH_3_21 — Chankillo Solar Observatory

Chankillo (also spelled Chanquillo) — a monumental archaeological complex in the Casma-Sechín Valley of coastal Peru, approximately 380 km north of Lima — contains the oldest known solar observatory in the Americas and o

Chankillo Thirteen Towers solar observatory Peru archaeoastronomy Casma Valley
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_13 Verified Archaeoastronomy

ZH_5_13 — Archaeoastronomical Controversies: Precision Debates and Methodological Limits

Archaeoastronomy — the study of how past cultures understood and used celestial phenomena — has been marked by recurring methodological controversies since its modern founding in the 1960s. The central problem: when an a

archaeoastronomy controversy methodology statistical testing selection bias megalithic yard
ZH_5_02 Verified Archaeoastronomy

ZH_5_02 — Megalithic Lunar Observatories: Thom's Hypothesis Revisited

The hypothesis that Neolithic and Bronze Age megalithic monuments in Britain, Ireland, and Brittany functioned as sophisticated lunar observatories — capable of tracking the Moon's complex motions to high precision — is

Alexander Thom megalithic lunar observatory standstill Callanish Carnac
ZH_1_01 Verified Archaeoastronomy

ZH_1_01 — Archaeoastronomy: Discipline, Debates, and Cultural Astronomy

Archaeoastronomy is the interdisciplinary study of how past cultures understood, used, and integrated celestial phenomena — the motions of the sun, moon, planets, and stars — into their architecture, ritual practices, ag

archaeoastronomy cultural astronomy ethnoastronomy astronomical alignment ancient astronomy celestial observation
G_4_11 Verified Modern Frameworks

G_4_11 — Archaeoastronomy Methods and Systematic Evidence

Archaeoastronomy — the study of how past civilizations understood, observed, and used astronomical phenomena — has matured from a field plagued by speculative alignment claims into a rigorous interdisciplinary discipline

archaeoastronomy ethnoastronomy astronomical alignment solstice equinox stellar alignment
D_5_08 Credible Sites & Artifacts

D_5_08 — Archaeoastronomy Synthesis

Archaeoastronomy — the study of how past peoples understood and used celestial phenomena — reveals a depth and sophistication of ancient astronomical knowledge that consistently challenges conventional timelines of scien

archaeoastronomy astronomical alignment Nabta Playa Göbekli Tepe Pillar 43 Vulture Stone