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.
369 results for "planar graph" — page 6 of 19
F_3_20 — Pottery Diffusion Patterns: Ceramic Technology Transfer Across Ancient Civilizations
Pottery — humanity's first synthetic material, created by irreversibly transforming clay through firing at 500–1,200°C — serves as the single most abundant and informative artifact class in archaeology, providing evidenc
ZA_2_17 — Emergent Spacetime & ER=EPR Conjecture
The ER=EPR conjecture — proposed by Juan Maldacena and Leonard Susskind in 2013 — posits that Einstein-Rosen bridges (wormholes, "ER") and Einstein-Podolsky-Rosen entanglement ("EPR") are fundamentally the same phenomeno
ZA_5_19 — Bekenstein Bound: Information Limits and the Physics of Black Holes
The Bekenstein bound — proposed by Jacob Bekenstein in 1981 — establishes a fundamental upper limit on the amount of information (entropy) that can be contained within a given region of space with a given amount of energ
M_5_26 — Levantine Archaeology: Crossroads of Ancient Civilizations
The Levant — the eastern Mediterranean corridor encompassing modern Israel, Palestine, Jordan, Lebanon, Syria, and southeastern Turkey — is arguably the most archaeologically consequential region on Earth. It witnessed t
M_5_16 — Dead Sea Scrolls: Discovery, Contents, and Suppressed Interpretations
The Dead Sea Scrolls comprise approximately 981 manuscripts discovered between 1947 and 1956 in eleven caves near Khirbet Qumran on the northwest shore of the Dead Sea in the West Bank. The scrolls date from the 3rd cent
M_4_03 — Archaeological Dating Disputes and Controversies
Archaeological dating methods — the techniques used to determine the age of artifacts, structures, and deposits — are the backbone of all claims about the human past. Radiocarbon dating (carbon-14 analysis, developed by
M_1_05 — Phaistos Disc — Undeciphered Minoan Artifact
The Phaistos Disc is a fired clay disc approximately 15 cm in diameter, impressed on both sides with a spiral arrangement of 241 signs comprising 45 distinct symbols, discovered in 1908 by Italian archaeologist Luigi Per
A_1_22 — Proto-Writing Development and Precursors to Cuneiform
The transition from pre-literate record-keeping to cuneiform script spanned approximately 5,000 years, from small geometric clay tokens used for commodity tracking in the Neolithic (c. 8000 BCE) through the emergence of
A_2_13 — Sibylline Oracles: Prophecy Between Judaism and Paganism
The Sibylline Oracles (Oracula Sibyllina) are a collection of 12 surviving books (numbered 1–8, 11–14, with books 9–10 lost) of prophetic poetry in Greek hexameter verse, composed between the 2nd century BCE and the 7th
A_4_26 — Aztec Codices: Borgia Group and Mesoamerican Ritual Manuscripts
The Aztec codices — particularly the Borgia Group — are a set of pre-Columbian and early colonial-period painted manuscripts from central Mexico, produced on deerskin or bark paper (amatl) in screenfold format. The Borgi
A_4_23 — Bundahishn: Zoroastrian Creation and Cosmic Battle
The Bundahishn (Bundahišn, "Primal Creation") is the most important Zoroastrian cosmogonical text, composed in Middle Persian (Pahlavi) during the 9th century CE but preserving traditions that are centuries or millennia
A_4_28 — Nihon Shoki: Japan's Chronicle of Gods and Sovereigns
The Nihon Shoki (日本書紀, "Chronicles of Japan," also known as Nihongi) is the second-oldest extant Japanese historical text (after the Kojiki, 712 CE), completed in 720 CE under the supervision of Prince Toneri (舎人親王, 676–
A_4_22 — Puranas: Hindu Cosmological Encyclopedia
The Puranas (Purāṇa, "ancient, old") are a vast corpus of Hindu sacred literature comprising 18 Mahāpurāṇas ("Great Puranas") and 18 Upapurāṇas ("Secondary Puranas"), totaling hundreds of thousands of verses (the Skanda
A_4_27 — Korean Samguk Yusa: Myths, Miracles, and the Foundations of Korean Identity
The Samguk Yusa (삼국유사, "Memorabilia of the Three Kingdoms") is a collection of legends, folktales, Buddhist miracle stories, and historical accounts relating to the Three Kingdoms of Korea (Goguryeo, Baekje, and Silla) a
A_4_14 — Shan Hai Jing (Classic of Mountains and Seas)
The Shan Hai Jing (山海經, "Classic of Mountains and Seas") is one of the most extraordinary texts of the ancient Chinese literary corpus — an encyclopedic compendium of mythological geography, zoology, mineralogy, and cosm
A_3_09 — Ethiopian Sacred Texts Beyond the Kebra Nagast
The Ethiopian Orthodox Tewahedo Church preserves the most expansive biblical canon in Christendom — 81 books, compared to 66 in the Protestant canon and 73 in the Roman Catholic canon — including texts considered apocryp
U_1_13 — Musical Notation: From Neumes to MIDI and Digital Scores
Musical notation — the technology of transcribing sound into visible marks — is one of humanity's most consequential inventions, enabling music to be preserved, transmitted, standardized, and composed in ways impossible
U_1_14 — World Dance Traditions: Ballet, Bharatanatyam, Flamenco, and Hula
Dance — the oldest art form, predating language, visual art, and music in some theoretical models — is the organization of human movement in time and space for expressive, ritual, social, or aesthetic purposes. Every kno
U_3_16 — East Asian Painting Traditions: Chinese, Japanese, and Korean Ink Arts
East Asian painting — encompassing the interconnected but distinct traditions of China, Japan, and Korea — constitutes one of the world's longest continuous artistic traditions, spanning over two millennia and developing
U_3_07 — Paper and Papermaking Traditions
Paper — a matted sheet of plant fibers — is one of civilization's most transformative inventions, enabling the preservation and dissemination of knowledge at scales impossible with earlier writing surfaces. Pre-paper wri
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