Thorne Blackwood spent over a decade studying biblical chronology, ancient calendars, and the historical record surrounding the early Church councils before writing this book. What began as a personal question — why the seventh day observed today never quite lines up with the lunar cycles described in Scripture — turned into a years-long forensic investigation spanning astronomy, Roman history, and rabbinic tradition.

Blackwood writes not as a theologian defending a denomination, but as an investigator following the evidence wherever it leads. This book is the result of that investigation: a case built on dates, decrees, and orbital mechanics rather than tradition alone.