📖 App Overview & Features

Ancient Calendars is a cinematic chronometer designed to bridge ancestral wisdom with modern technology. It turns your device into a tactile, historical artifact.

Key Features

• Time Travel (Archive): Select any date from antiquity to the modern era to see its equivalent across various civilizations.
• Celestial HUD: Real-time tracking of lunar phases and solar progress (counting down the days to the Vernal Equinox).
• Parallax Interface: A UI that responds to your device's movement, creating a sense of physical depth for each calendar card.

Included Logic Engines

1. Maya: Features the Long Count (Baktun.Katun.Tun.Uinal.Kin) and the sacred 260-day Tzolk'in cycle.
2. Aztec: Displays the 365-day Xiuhpohualli month alongside the 260-day Tonalpohualli ritual sign.
3. Egyptian: The Civil Calendar divided into the three seasons: Akhet (Inundation), Peret (Growth), and Shemu (Harvest).
4. Roman: Time measured "Ab Urbe Condita" (A.U.C.)—from the founding of Rome—using the Julian reform structure.
5. Greek: The Attic calendar tracking months and the four-year Olympiad cycles.
6. Chinese: A lunisolar engine identifying the Zodiac animal and the elemental heavenly stems.
7. Norse: The "Weekly" Viking system split into the two primary seasons of Winter and Summer.
8. Nova (Experimental): A fixed 13-month calendar restoration with perfect 28-day symmetry and a "Day Zero" reset on March 19th.

⚙️ Instructions & Tips

• Changing Dates: Use the Archive button (book icon) to jump to historical events, or use the Date Picker at the top to select a custom point in time.
• Reordering: Visit Settings (gear icon) to drag and drop your most-used calendars to the front of the stack.