Genealogical & Historical Calculators
The Andong Kim Historical Preservation Society has engineered precision computational models to decode traditional Korean archives. From genealogical generation algorithms and sexagenary stem-branch conversions to King Sejong's concave sundial mechanics, explore our four specialized historical research tools.
Reverse Hangyeol Name Matcher
Input any Korean given name or historical ancestral moniker to reverse-engineer its generational marker (Hangyeol-ja), identify exact clan generation (世), and find historical peers across Shin and Gu clans.
Hangyeol Generation Calculator
Determine your exact ancestral generation in both the Old (Gu) and New (Shin) Andong Kim lineages. Computes the Five Elements (Wood-Fire-Earth-Metal-Water) cyclical naming radical and locates your position across 35 generations.
Joseon Astronomy & Sundial Simulator
Interactive mathematical simulation of King Sejong's 1434 Angbu-ilgu concave hemispherical sundial. Calculates solar declination lines, 12 Joseon double-hours (Sishi), and maps the 28 Lunar Mansions (Eshibipal-su).
Sexagenary Cycle & Regnal Year Converter
Convert any Gregorian year (1392–present) into its exact 60-Gapja stem and branch combination, corresponding Chinese zodiac animal, and exact Joseon monarch regnal year for dating archival Jokbo documents.
Joseon Official Ranks & Court Hierarchy
Interactive hierarchy of Joseon civil (Mun-gwan) and military (Mu-gwan) offices across the 18 official ranks, distinguishing Senior 1st Rank (Jeong-il-pum) state ministers from Dangsanggwan decision-makers.
Looking for Genealogical Guidance?
Read our step-by-step primer on interpreting Jokbo clan records, calligraphy seals, and posthumous epithets.