Our Calendar

Delving into the mechanics of time‑keeping, this work guides readers through the fascinating evolution of the calendar from its ancient origins to the modern Gregorian system. The author, once a classroom teacher, shares the simple rules he devised for pinpointing the day of the week of any historical or future date, stretching all the way to the year 4000. Alongside clear explanations of dominical letters and leap‑year adjustments, the book weaves personal anecdotes that reveal how a bout of ill health sparked a lifelong curiosity about the sun‑Earth dance.

The revised edition expands the scope with approachable chapters on the quirks of the Roman calendar, the complexities of dating events before the Christian era, and the notoriously tricky calculation of Easter and related festivals. By breaking down these once‑esoteric methods into step‑by‑step procedures, the author makes calendar lore accessible to anyone with a modest interest in dates. Readers come away equipped to answer “What day was it on…?” for any moment in the past four millennia, and with a deeper appreciation for the subtle mathematics that keep our years in sync.