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.
65 results for "calendar reform" — page 3 of 4
ZH_2_05 — Japanese and Korean Astronomical Traditions
The astronomical traditions of Japan and Korea developed in close dialogue with Chinese astronomy — but were far from mere copies. Both civilizations adapted Chinese astronomical models, instruments, and calendrical meth
ZH_2_11 — Southeast Asian Astronomy: Thai, Burmese, Khmer, and Indonesian Traditions
The astronomical traditions of Southeast Asia — Thailand (Siam), Myanmar (Burma), Cambodia (Khmer), Java, Bali, and the wider Malay-Indonesian archipelago — represent a distinctive synthesis of Indian, indigenous, and (i
ZH_2_03 — Islamic Golden Age Astronomy: Observatories and Star Catalogs
Islamic astronomy (c. 750–1500 CE) represents one of the most productive and sophisticated periods in the history of astronomical science — a sustained tradition of observation, mathematical innovation, and critical enga
ZH_2_06 — Astronomy in the Rig Veda and Early Indian Texts
The Rig Veda — the oldest of the four Vedas and among the oldest religious texts still in continuous use (~1500–1200 BCE, though dating is debated) — contains hymns, references, and cosmological imagery that reflect the
ZH_2_07 — Persian and Central Asian Astronomical Heritage
The astronomical traditions of Persia (Iran) and Central Asia (modern Uzbekistan, Tajikistan, Afghanistan, Turkmenistan) produced some of the most important astronomers, observatories, and star catalogs in pre-modern his
ZH_1_04 — Nebra Sky Disk: Bronze Age Star Map Analysis
The Nebra sky disk (Himmelsscheibe von Nebra) is a bronze disk approximately 30 cm in diameter, decorated with gold-leaf appliqué representing the sun (or full moon), a crescent moon, stars (including a cluster interpret
ZH_1_20 — Egyptian Decans & Star Clocks: Timekeeping by the Night Sky
The Egyptian decan system — a method of dividing the night sky into 36 stellar groups (decans) whose sequential heliacal risings (first visible appearance on the eastern horizon just before sunrise) marked ten-day period
ZH_1_07 — Antikythera Mechanism: World's First Astronomical Computer
The Antikythera mechanism is a corroded mass of bronze gears and inscribed plates recovered in 1901 from an ancient shipwreck off the Greek island of Antikythera, dated to approximately 60–70 BCE (though the mechanism it
C_5_29 — Moon Mythology: Lunar Deities, Cycles, and Symbolism Across Cultures
The Moon — the most visible and regularly changing celestial object — has been a primary religious and mythological symbol for every known culture. Its predictable cycle of waxing, full, waning, and new (approximately 29
C_5_03 — Indigenous Knowledge Systems
Indigenous knowledge systems represent the longest-running experiments in human survival — the Australian Aboriginal peoples have maintained continuous cultural practice for 65,000+ years, making theirs the oldest living
C_3_05 — Aztec Cosmology and the Five Suns
Aztec (Mexica) cosmology describes the universe as having passed through four previous ages (Suns), each created and destroyed by different gods through catastrophic events — jaguars, wind, fire-rain, and flood. We live
ZF_3_06 — Polynesian and Indigenous Ocean Knowledge
Indigenous and Pacific Islander communities have accumulated millennia of empirical ocean knowledge — encompassing navigation, marine ecology, fisheries management, weather prediction, tidal patterns, and ocean-land rela
K_2_20 — Savant Syndrome — Neuroscience of Extraordinary Ability
Savant syndrome — the coexistence of extraordinary ability in a specific domain with significant cognitive disability or neurodevelopmental condition — was first described medically by J. Langdon Down (the physician who
ZG_4_14 — Language Policy and Planning: Status, Corpus, and Acquisition Planning
Language policy and planning (LPP) refers to the deliberate efforts by governments, institutions, and communities to influence the status, form, and use of languages and language varieties within a society. Einar Haugen
ZC_5_12 — Peasant Studies: Agrarian Change, Moral Economy, and Resistance
Peasant studies is an interdisciplinary field studying the economic, social, political, and cultural life of rural agricultural communities — peasantries — and the processes of agrarian change, resistance, and transforma
ZC_1_02 — Cult Psychology — Manipulation, Totalism, and Recovery
Cult psychology examines how high-demand groups employ systematic influence techniques to recruit, retain, and control members. Key frameworks include Robert Jay Lifton's eight criteria of thought reform, Steven Hassan's
D_1_12 — Chichen Itza — Calendrical Pyramid and Sacred Cenote
Chichen Itza, located in the northern limestone lowlands of the Yucatan Peninsula, Mexico, was one of the largest and most powerful Maya cities during the Terminal Classic and Early Postclassic periods (c. 750–1250 CE).
D_1_20 — Chankillo Solar Observatory: The Thirteen Towers
Chankillo is a 2,300-year-old ceremonial complex in the Casma Valley, coastal Peru, featuring a line of Thirteen Towers that constitute the oldest known solar observatory in the Americas and one of the most complete arch
Y_4_02 — Savant Syndrome and Acquired Genius
Savant syndrome — extraordinary ability coexisting with significant cognitive disability — affects roughly 1 in 10 people with autism and ~1 in 2,000 people with other developmental disabilities or brain injuries. What m
H_1_12 — Iconoclasm — Systematic Destruction of Sacred Images
Iconoclasm — the deliberate destruction of religious images, statues, and sacred art — is one of the most recurrent and cross-cultural forms of knowledge suppression in human history. Far from random vandalism, iconoclas
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