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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.

3,271 results for "ion channels" — page 153 of 164

W_4_18 Verified World Civilizations

W_4_18 — Tiwanaku and Wari: Pre-Inca Andean Empires

Tiwanaku (Tiahuanaco) and Wari (Huari) were the two dominant polities of the Andean Middle Horizon (c. 500–1000 CE), together representing the first large-scale expansionary states in South American history and the most

Tiwanaku Wari Huari Middle Horizon Andean pre-Inca
W_4_04 Verified World Civilizations

W_4_04 — Mississippian Culture — Cahokia, Mound Builders, and the Southeastern Ceremonial Complex

Cahokia, located near present-day East St. Louis, Illinois, was the largest pre-Columbian settlement north of Mexico, reaching a peak population of 20,000 or more around 1050-1200 CE. The site features Monks Mound — the

Cahokia Mississippian culture mound builders Monks Mound Southeastern Ceremonial Complex SECC
W_4_00 World Civilizations

W_4_00 — Americas Pacific Indigenous: Subfolder Summary

W_4_14 Credible World Civilizations

W_4_14 — Inca Empire: Tawantinsuyu, Quipu, and Vertical Archipelago

Tawantinsuyu ("The Four Parts Together") — the Inca Empire — was the largest empire in pre-Columbian America and the largest empire in the Southern Hemisphere, stretching ~4,000 km along the Andes from modern Colombia to

Inca Tawantinsuyu Cusco quipu khipu Machu Picchu
W_4_19 Verified World Civilizations

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

mississippian cahokia mound-builders monks-mound north-america pre-columbian
W_4_17 Verified World Civilizations

W_4_17 — Mississippian Culture and Mound-Builder Networks

The Mississippian culture (c. 800–1600 CE) was the most complex pre-Columbian society in North America east of the Mississippi River, characterized by flat-topped platform mounds, intensive maize agriculture, hierarchica

Mississippian Cahokia mound-builder chiefdom Southeastern-Ceremonial-Complex maize-agriculture
W_1_16 Verified World Civilizations

W_1_16 — Hittite Empire: Anatolia's Forgotten Superpower

The Hittite Empire (c. 1650–1178 BCE) dominated Anatolia and northern Mesopotamia for nearly five centuries, rivaling Egypt, Babylon, and Assyria as one of the Late Bronze Age's four "Great Powers." Operating from their

Hittite Hatti Hattusa Anatolia Bronze Age Suppiluliuma
W_1_00 World Civilizations

W_1_00 — Ancient Near East Mediterranean: Subfolder Summary

W_3_20 Credible World Civilizations

W_3_20 — Mali Empire and Timbuktu: West African Scholarly and Trade Power

The Mali Empire (Manden Kurufaba, ~1235–1600 CE) — one of the largest and wealthiest states in pre-modern world history — dominated the West African Sahel and savanna, controlling trans-Saharan trade routes and the gold-

mali-empire timbuktu mansa-musa songhai trans-saharan-trade sankore
W_3_13 Credible World Civilizations

W_3_13 — Zanzibar and East African Trade Networks: Spice, Slaves, and Swahili Culture

Zanzibar — the archipelago off the coast of modern Tanzania — and the Swahili coast stretching from southern Somalia to northern Mozambique were the nexus of one of history's great maritime trade networks, connecting the

Zanzibar Swahili East Africa Indian Ocean trade network slave trade
W_3_12 Credible World Civilizations

W_3_12 — Gupta Empire: Classical India's Golden Age

The Gupta Empire (c. 320–550 CE) is widely regarded as the "Golden Age" of classical India — a period of extraordinary achievement in literature, science, mathematics, philosophy, art, and architecture that set the cultu

Gupta golden age Chandragupta I Samudragupta Chandragupta II Kalidasa
W_3_23 Verified World Civilizations

W_3_23 — Kanem-Bornu Empire

The Kanem-Bornu Empire (c. 700–1893 CE) was one of the longest-lived states in African history, persisting through multiple dynastic phases for over a millennium around the Lake Chad basin. Founded by the Sayfawa dynasty

Kanem-Bornu Lake Chad Sayfawa dynasty trans-Saharan trade Kanuri mais
W_3_21 Verified World Civilizations

W_3_21 — The Songhai Empire: West Africa's Largest Pre-Colonial State

The Songhai Empire (c. 1464–1591 CE) was the largest state in African history, controlling approximately 1.4 million km² of West Africa at its peak under Askia Muhammad I (r. 1493–1528). Rising from the declining Mali Em

songhai-empire askia-muhammad sunni-ali timbuktu gao trans-saharan-trade
W_3_07 Verified World Civilizations

W_3_07 — San (Bushmen) Rock Art, Trance Dance, and the Oldest Living Culture

The San (Bushmen) of southern Africa represent what may be the oldest continuously surviving cultural tradition on Earth, with genetic evidence placing them at the base of the modern human family tree (mitochondrial DNA

San Bushmen Khoisan rock art trance dance n/um
W_3_24 Verified World Civilizations

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

Nok culture terracotta West African Iron Age Nigeria Jos Plateau iron smelting
W_3_15 Credible World Civilizations

W_3_15 — Satavahana and Deccan Kingdoms: South Indian Power and Trade

The Satavahana dynasty (c. 230 BCE–220 CE) and the broader network of Deccan kingdoms — including the Tamil-speaking Chola, Chera, and Pandya dynasties of the Sangam Age (c. 300 BCE–300 CE) — represent a crucial but ofte

Satavahana Deccan Andhra Amaravati Nagarjunakonda Roman trade
W_2_29 Credible World Civilizations

W_2_29 — Satavahana and Deccan Kingdoms: South Indian Power and Trade

The Satavahana dynasty (c. 230 BCE–220 CE) and the broader network of Deccan kingdoms — including the Tamil-speaking Chola, Chera, and Pandya dynasties of the Sangam Age (c. 300 BCE–300 CE) — represent a crucial but ofte

Satavahana Deccan Andhra Amaravati Nagarjunakonda Roman trade
W_2_05 Verified World Civilizations

W_2_05 — Jain Cosmology and Non-Violence Philosophy

Jainism is one of the world's oldest living religions, with roots extending to at least the 9th century BCE and traditional claims reaching far deeper into prehistory. Its cosmological system describes a vast, uncreated,

Jain Jainism cosmology ahimsa non-violence Tirthankaras
W_2_02 Verified World Civilizations

W_2_02 — Angkor Wat, Khmer Cosmology, and Hindu-Buddhist Temple Mountains

Angkor Wat is the largest religious monument ever built — a 162.6-hectare temple complex in northwestern Cambodia, constructed under King Suryavarman II (r. ~1113-1150 CE) as a Hindu temple dedicated to Vishnu. It repres

Angkor Wat Angkor Thom Khmer Empire Cambodia Suryavarman II Jayavarman VII
W_2_21 Verified World Civilizations

W_2_21 — The Khmer Empire and Angkor

The Khmer Empire (~802–1431 CE), centered in present-day Cambodia, was one of the most powerful and spatially extensive states in Southeast Asian history, and its capital Angkor was the largest preindustrial city on Eart

khmer-empire angkor-wat angkor-thom jayavarman bayon hydraulic-city