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.

618 results for "shared NDE" — page 19 of 31

T_5_14 Credible Psychology & Social

T_5_14 — Peak Experiences and Ecstasy: Maslow, Mystical States, and Transformative Moments

Peak experiences — moments of ecstatic joy, profound meaning, ego-dissolution, and felt unity with the world — were identified by Abraham Maslow (1964) as among the most important experiences in human life: rare, spontan

peak experience Maslow ecstasy mystical experience flow awe
T_5_01 Verified Psychology & Social

T_5_01 — Sports Psychology and Performance

Sports psychology investigates the psychological factors that influence athletic performance, exercise behavior, and physical activity — applying principles from cognitive, social, and clinical psychology to optimize hum

sports psychology peak performance mental toughness visualization imagery self-efficacy
D_2_07 Verified Sites & Artifacts

D_2_07 — Persepolis: Achaemenid Architecture, Apadana Reliefs, and Imperial Ideology

Persepolis (Old Persian: Pārsa; modern Takht-e Jamshid, Fars Province, Iran) was the ceremonial capital of the Achaemenid Persian Empire, constructed primarily under Darius I (r. 522–486 BCE) and his son Xerxes I (r. 486

Persepolis Achaemenid Darius I Xerxes Apadana Persepolis Fortification Archive
D_2_01 Verified Sites & Artifacts

D_2_01 — Maltese Temple Builders and the Ħal Saflieni Hypogeum

The Maltese Temple Period (~3600–2500 BCE) produced the oldest free-standing structures on Earth — predating the Egyptian pyramids by ~1,000 years and Stonehenge by ~1,500 years. The tiny Maltese islands (316 km² total —

Malta Ħal Saflieni Hypogeum Ġgantija Mnajdra Ħaġar Qim Tarxien
D_1_08 Verified Sites & Artifacts

D_1_08 — Tiwanaku and Puma Punku Deep Dive

Tiwanaku, situated at 3,825m elevation on the Bolivian Altiplano near the shores of Lake Titicaca, was the highest-altitude imperial capital in the ancient world. Flourishing from approximately 300 to 1000 CE, its influe

Tiwanaku Tiahuanaco Puma Punku Gateway of the Sun Viracocha Staff God
D_1_25 Verified Sites & Artifacts

D_1_25 — Ollantaytambo: Megalithic Engineering in the Sacred Valley

Ollantaytambo (Quechua: Ullantaytampu) is a monumental Inca archaeological site at 2,792 m elevation in the Sacred Valley (Urubamba Valley) of Peru, approximately 72 km northwest of Cusco. It served simultaneously as a r

Ollantaytambo Sacred Valley Inca megalithic Temple Hill Wall of the Six Monoliths
D_1_06 Verified Sites & Artifacts

D_1_06 — Carnac, Avebury, and European Megalithic Alignments

Europe's megalithic tradition extends from Portugal to Scandinavia and spans roughly 4800–1500 BCE, encompassing thousands of stone circles, standing stones (menhirs), stone rows, dolmens, and passage tombs. The Carnac a

Carnac Avebury megalithic alignments menhirs stone rows stone circles
D_5_09 Verified Sites & Artifacts

D_5_09 — Ancient Writing Systems Compared

The invention of writing — the transition from oral to literate civilization — is among humanity's most consequential technological achievements. Yet its origins remain debated: was writing invented once and diffused, or

writing systems cuneiform hieroglyphs Linear A Linear B rongorongo
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
D_5_06 Verified Sites & Artifacts

D_5_06 — Fractals and Scale Invariance

Fractals — shapes and patterns that repeat at every scale of magnification — were formalized by Benoît Mandelbrot in The Fractal Geometry of Nature (1982) as a new mathematical language for describing the IRREGULAR forms

fractal Mandelbrot self-similarity scale invariance fractal dimension Hausdorff
D_3_12 Verified Sites & Artifacts

D_3_12 — Sacsayhuamán: Polygonal Megalithic Masonry

Sacsayhuamán (Quechua: Saqsaywaman, variously translated as "speckled falcon" or "satisfied falcon") — an immense architectural complex on a steep hill overlooking Cusco, Peru — contains some of the most awe-inspiring me

Sacsayhuamán Cusco Inca polygonal masonry megalithic cyclopean
D_4_03 Verified Sites & Artifacts

D_4_03 — Ancient Tunnels, Erdstall, and Subterranean Networks

Humanity has dug, carved, and inhabited subterranean spaces for thousands of years — from the vast underground cities of Cappadocia (Derinkuyu, 8+ levels deep, housing up to 20,000 → [D_4_01](D_4_01_Underground_Cities_an

tunnels erdstall underground subterranean Derinkuyu Kaymakli
D_4_00 Sites & Artifacts

D_4_00 — Submerged Underground: Subfolder Summary

B_5_14 Speculative Beings & Entities

B_5_14 — Men in Black: Government Agents, Silencers, and the MIB Phenomenon

The Men in Black (MIB) are a recurring element in UFO/UAP culture: mysterious individuals — typically described as wearing dark suits, driving black cars, and behaving in an oddly mechanical or inhuman manner — who alleg

Men in Black MIB Albert Bender Gray Barker UFO suppression silencer
B_5_15 Verified Beings & Entities

B_5_15 — Popol Vuh: K'iche' Maya Creation Narrative and Supernatural Beings

The Popol Vuh is the principal mythological and cosmogonic text of the K'iche' Maya, preserved in a colonial-era transcription completed around 1554–1558 CE and first recorded in Latin script by Francisco Ximénez circa 1

popol vuh k'iche' maya hero twins hunahpu xbalanque xibalba
B_5_01 Verified Beings & Entities

B_5_01 — Animal Symbolism Beyond Serpents — Eagle, Jaguar, Bull, Fish

While serpent symbolism dominates this project's B-section (→ [B_2_01](../B2_Humanoid_Crypto_Entities/B_2_01_Reptilian_Beings_Overview.md)–B_3_02), four other animals appear with extraordinary consistency across unrelate

animal symbolism eagle jaguar bull fish totemism
B_4_12 Verified Beings & Entities

B_4_12 — Tengu, Oni, and Japanese Supernatural Taxonomy

Japanese tradition preserves one of the world's most elaborate and systematized supernatural taxonomies — a vast ecosystem of non-human beings encompassing kami (gods/spirits), yōkai (strange beings), yūrei (ghosts), oni

tengu oni yokai yūrei kami Japanese supernatural
B_4_07 Credible Beings & Entities

B_4_07 — Nature Spirits, Elementals, and Land Wights

Across every inhabited continent, human cultures have independently developed traditions of intelligent, non-human entities inhabiting natural features — trees, rivers, mountains, stones, winds, and fires. This document

nature spirits elementals Paracelsus gnomes sylphs undines
B_2_24 Credible Beings & Entities

B_2_24 — Wild Man: Feral Human Mythology and Bigfoot Traditions

The Wild Man — a large, hairy, human-like being living in the wilderness beyond civilization's edge — appears in mythologies, folklore, and claimed-sighting reports across every inhabited continent. The earliest fully de

wild man Enkidu Sasquatch Bigfoot yeti yeren
B_2_04 Verified Beings & Entities

B_2_04 — Ancient Rulers & Extraordinary Lifespans

Multiple ancient civilizations — Sumerian, Biblical, Egyptian, Chinese, Japanese, and Indian — recorded rulers with extraordinarily long lifespans far exceeding normal human expectancy. All traditions share a striking pa

Sumerian King List antediluvian kings Methuselah Genesis genealogy sexagesimal base-60