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.
1,601 results for "Ica stones" — page 21 of 81
A_4_31 — Amazonian Indigenous Cosmologies: Tupi, Guarani & Their World
The Tupi-Guarani language family encompasses hundreds of indigenous peoples across a vast territory stretching from the Amazon Basin through eastern Brazil to the Río de la Plata region of Paraguay, Argentina, and Urugua
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
A_3_17 — Punic & Carthaginian Sacred Texts
The Punic (Western Phoenician) civilization, centered on Carthage (modern-day Tunisia, founded traditionally in 814 BCE by emigrants from Tyre), was one of the great Mediterranean powers for over six centuries — yet its
U_3_19 — Ancient Tattooing Traditions
Tattooing is one of the oldest and most universal forms of human body modification, with archaeological evidence spanning at least 5,300 years and ethnographic documentation across every populated continent. The oldest k
X_5_04 — Rehabilitation Medicine: Restoring Function After Injury and Illness
Rehabilitation medicine (also called physical medicine and rehabilitation — PM&R, or physiatry) is the medical specialty dedicated to restoring function, reducing disability, and improving quality of life for individuals
X_5_24 — Ancient Egyptian Medicine: The Edwin Smith Papyrus and Rational Healing
Ancient Egyptian medicine, documented in medical papyri spanning ~1900–1200 BCE but reflecting traditions potentially centuries older, represents one of the earliest systems to combine rational clinical observation with
X_3_23 — Regenerative Medicine and Tissue Engineering
Regenerative medicine — the field aiming to repair, replace, or regenerate damaged tissues and organs through stem cell therapies, tissue engineering, biomaterial scaffolds, and gene editing — represents one of the most
W_4_20 — Olmec Civilization: Detailed Analysis
The Olmec civilization (c. 1500–400 BCE) of the tropical lowlands of the Gulf Coast of Mexico — primarily in the modern states of Veracruz and Tabasco — is widely regarded as the first major civilization of Mesoamerica a
W_4_13 — Aztec Empire: Tenochtitlan, Sacrifice, and Cosmovision
The Aztec Empire — more precisely the Mexica-led Triple Alliance (c. 1428–1521 CE) of Tenochtitlan, Texcoco, and Tlacopan — was the dominant political and military power in Mesoamerica at the time of the Spanish arrival.
W_4_19 — Mississippian Culture and Cahokia
The Mississippian culture (~800–1600 CE) was the most complex and widespread pre-Columbian society in eastern North America, characterized by large-scale earthen mound construction, intensive maize agriculture, hierarchi
W_1_23 — Pre-Pottery Neolithic B (PPNB)
The Pre-Pottery Neolithic B (PPNB, c. 8800–6500 BCE) represents one of the most transformative periods in human history — the era when small communities of early farmers in the Levant and Upper Mesopotamia scaled up into
W_3_16 — Aksumite Empire
The Aksumite Empire (c. 100–940 CE) was a major trading civilization centered in the northern Ethiopian and Eritrean highlands, with its capital at Aksum. It was one of the four great powers of the ancient world accordin
W_3_08 — Yoruba Civilization: Ile-Ife, Orishas, and Diaspora Legacy
The Yoruba civilization — centered in southwestern Nigeria and the Republic of Benin — is one of the most culturally influential civilizations in African and world history, with a continuous urban tradition stretching ba
W_3_22 — Mapungubwe Kingdom
Mapungubwe (c. 1075–1290 CE) was the first complex state society in southern Africa, located at the confluence of the Limpopo and Shashe rivers in present-day South Africa. The site demonstrated the earliest evidence of
W_3_24 — Nok Culture
The Nok culture (c. 1500 BCE – 500 CE) of central Nigeria produced sub-Saharan Africa's earliest-known large-scale terracotta sculpture tradition and some of the continent's earliest evidence for iron smelting. First ide
W_5_21 — Iron Age Transition in the Mediterranean (1200–500 BCE)
The Iron Age transition (c. 1200–500 BCE) in the Mediterranean represents one of history's most transformative periods: the collapse of the interconnected Late Bronze Age palatial economies (Mycenaean Greece, Hittite Emp
W_5_13 — Mississippian Decline: Cahokia Collapse and Abandonment Theories
Cahokia — the largest pre-Columbian city north of Mexico, located in the American Bottom floodplain of the Mississippi River near modern-day St. Louis, Missouri/East St. Louis, Illinois — rose rapidly around 1050 CE to b
ZH_4_02 — Precession in Ancient Culture: Hamlet's Mill Thesis
Hamlet's Mill: An Essay on Myth and the Frame of Time (1969), by MIT historian of science Giorgio de Santillana and ethnologist Hertha von Dechend, is one of the most intellectually ambitious — and controversial — works
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
ZH_2_04 — Cosmic Cycle Doctrines: Great Year, Yuga, Precession Ages
Many civilizations have conceived of cosmic time as cyclical rather than linear — repeating through grand cycles of creation, decline, and renewal that span thousands or millions of years. The most influential of these d
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