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.
75 results for "Zu Chongzhi" — page 1 of 4
V_1_12 — Chinese Mathematics History
Chinese mathematics developed independently over at least 3,000 years, producing remarkable achievements often centuries before their European counterparts. The Jiuzhang Suanshu (Nine Chapters on the Mathematical Art, co
C_4_16 — Zulu and Southern African Cosmologies
Zulu and broader Southern African cosmologies constitute one of the richest and most dynamic indigenous religious systems on the African continent, rooted in Bantu-speaking peoples' migrations into the region over the pa
B_1_15 — Water Deities: Poseidon, Varuna, Tlaloc, Sedna, Mazu
Water deities — gods and goddesses governing oceans, rivers, rain, lakes, and springs — rule the element most essential to life and most capable of destruction. The Greek Poseidon (lord of the sea, earthquakes, and horse
Y_2_13 — Ecstatic Seizures: Dostoevsky, Elation, and Temporal Lobe Pre-Ictal States
Ecstatic seizures — epileptic seizures preceded or accompanied by intense feelings of bliss, transcendence, clarity, and profound meaning rather than the typical dread, confusion, or dysphoria — represent one of the most
F_2_08 — Lapis Lazuli Trade Networks
Lapis lazuli — a deep-blue metamorphic rock composed primarily of lazurite — is one of the oldest traded luxury materials in human history, with its distribution across the ancient world providing direct evidence of long
F_2_22 — Ancient Pigment Trade Routes: Lapis Lazuli, Tyrian Purple & Cinnabar
Pigments were among the most valued trade goods of the ancient world, with some traversing distances exceeding 4,000 km from source to final use. Lapis lazuli from the Sar-i Sang mines in Badakhshan (northeastern Afghani
M_5_04 — Submerged Structures of the Mediterranean — Pavlopetri to Baiae
The Mediterranean Sea contains some of the world's best-documented and most archaeologically significant submerged settlements and structures — sites that were built on dry land and subsequently inundated by combinations
A_1_02 — Sumerian ME: Divine Programs of Civilization
In Sumerian mythology, the ME (pronounced "may," 𒈨) are divine decrees, powers, or "programs" that govern every aspect of civilization and cosmic order. They are not mere abstract concepts — they are described as objects
A_1_04 — Enki, Enlil, and the Sumerian Divine-Political Hierarchy
Enki and Enlil are the two most consequential deities in Sumerian religion, representing fundamentally opposed principles: Enki embodies wisdom, craft, water, and compassion toward humanity; Enlil embodies authority, cos
A_1_03 — The Apkallu & Oannes: The Seven Sages Who Taught Civilization
This document examines The Apkallu & Oannes: The Seven Sages Who Taught Civilization, a topic within the Foundations research area. Notable findings include: Berossus** (Βηρωσσός) — Babylonian priest of Bel (Marduk), ~28
A_1_09 — Tiamat — Primordial Chaos Dragon and Cosmic Creation
Tiamat (Akkadian: ti'āmat or tâmtu, "sea") is the primordial chaos deity in the Enuma Elish — the Babylonian creation epic (composed ~1100 BCE, though drawing on older traditions). Tiamat represents the primordial salt w
A_1_25 — Kassite Period Babylonian Texts
The Kassite dynasty (c. 1595–1155 BCE) ruled Babylon for over 400 years, making it the longest-ruling dynasty in Babylonian history — yet it remains one of the least understood periods of Mesopotamian civilization. The K
A_1_01 — Sumerian Texts and Tablets
The Sumerians of southern Mesopotamia (~4500–1900 BCE) created the world's first known writing system (cuneiform, ~3400 BCE) and left behind hundreds of thousands of clay tablets — the vast majority still untranslated. T
A_4_04 — The Kojiki: Japan's Record of Ancient Matters
The Kojiki ("Record of Ancient Matters"), completed in 712 CE, is the oldest surviving literary work in Japan and the primary source for Shinto mythology and the divine origin of the Japanese imperial line. Compiled by Ō
A_4_03 — Popol Vuh: The Maya Book of Creation
The Popol Vuh ("Book of the Community" or "Book of Counsel") is the most important surviving mythological and historical text of the ancient Americas. A K'iche' Maya creation narrative, it was written down in the Latin a
A_4_07 — Tao Te Ching and Daoist Primary Texts
The Tao Te Ching (道德經, Daodejing) — attributed to Lao Tzu (Laozi, ~6th–4th century BCE) — is the foundational text of Daoist philosophy and one of the most translated works in human history. Its 81 brief chapters articul
U_3_01 — Tattoo & Body Modification Traditions
Tattooing and body modification are among the most ancient and widespread human cultural practices, with archaeological evidence stretching back at least 5,300 years and likely much further.
U_3_03 — Ancient Jewelry, Adornment & Shell Bead Trade
Personal adornment is among the oldest archaeological markers of symbolic behavior, with the earliest known ornaments — perforated Nassarius shell beads from Blombos Cave, South Africa, and sites in North Africa and the
U_5_04 — Comics, Graphic Novels, and Sequential Art
Sequential art — narrative through sequences of images, often combined with text — is one of humanity's oldest communication forms. Precursors: Egyptian tomb paintings with sequential narrative panels; Trajan's Column (R
U_2_07 — Mosaic and Tile Art
Mosaic — images or patterns created from small pieces (tesserae) of stone, glass, ceramic, or other materials set in mortar — is one of the most durable art forms, with surviving examples spanning 4,000+ years. Origins:
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