Calendar

From True Orthodox Wiki
Revision as of 11:26, 30 March 2024 by Eish (talk | contribs) (Outline)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

The calendar is a way to reckon time, specifically the passage of days in relation to months and years. The choice of calendar determines when the anniversaries of events will take place. Hence, it determines when and how long their celebrations—the feasts and fasts—will be, and even whether those take place at all.

This article or section is a stub. If you wish to help True Orthodox Wiki you may expand it. Request an account if you do not already have one.

Historical origins

The Church calendar

The Paschal moon

Gregorian reforms

The New Calendar

Origins

Controversy

Schism and persecutions

Astronomical appendix

The Ptolemaic model

The Copernican revolution

The Copernican model

The Keplerian model

Classical physics

The Newtonian model

The relativistic model

Perturbative models

Computational models

Isotropy and geocentrism

The isotropic principle

Coordinate systems

Cosmic microwave background radiation

Modeling limitations

Chaos theory

Computational effects

Geological effects

Other astrophysical effects

Conclusion: Apparent time in the heavens

References