CodexEvery tradition.
One architecture.
Why do holy days move?
Toggle between the theological significance and the ritual observances of each sacred calendar event.
| Tradition | Sacred Event | Calendar Logic | Theological Significance |
|---|---|---|---|
| Hinduism | Diwali | Amāvasyā of Kārtika (lunar) — shifts annually in Gregorian calendar | Victory of light over darkness; Lakshmi's blessing of prosperity; return of Rāma to Ayodhyā |
| Islam | Ramadan | 9th month of Hijri (lunar) calendar — advances ~11 days each Gregorian year | Revelation of Quran to Muhammad; intensification of divine mercy; Laylat al-Qadr (Night of Power) |
| Judaism | Yom Kippur | 10 Tishrei (lunisolar Hebrew calendar); falls Sep–Oct in Gregorian | Day of Atonement; God seals the Book of Life; culmination of the 10 Days of Awe |
| Buddhism | Vesak (Wesak) | Full moon of Vesākha (Pāli calendar) — April or May Gregorian | Triple commemoration: birth, enlightenment, and parinirvāṇa of the Buddha |
| Christianity | Easter | First Sunday after first full moon after vernal equinox (Council of Nicaea formula) | Resurrection of Jesus Christ; defeat of death; foundation of Christian salvation |
Why does Diwali move dates? The lunar Kārtika calendar advances relative to the Gregorian solar year — the same mechanism that shifts Ramadan, Easter, and Vesak.
Who holds authority?
From papal monarchy to decentralized Ulama — explore how each tradition structures spiritual and institutional power.
Vicar of Christ; supreme legislative, judicial, executive authority
Electors of the Pope; Curial governance
Oversee archdioceses; metropolitan authority
Oversee dioceses; ordain priests; confirm laity
Parish ministry; sacramental administration
Diocese vs. Eparchy: The Latin Rite uses Diocese (Code of Canon Law, can. 369); Eastern Catholic Churches use Eparchy (Code of Canons of the Eastern Churches, can. 177). Both refer to the same territorial unit of episcopal governance — the distinction is rite, not rank.
Where did the texts come from?
Click any node to reveal the lineage, transmission history, and downstream branches of each canonical corpus.
You've seen the threshold.
Step inside the library.
200+ traditions. 12 comparison dimensions. Ritual calendars, governance maps, text lineages, and theological frameworks — all cross-referenced, all navigable.