From Sabbath to Sunday is a translation and an adaptation of my Italian doctoral dissertation, originally presented at and published by the Pontifical Gregorian University in 1977.
The investigation establishes that the change from Saturday to Sunday began approximately one century after the death of Christ, as a result of an interplay of political, social, pagan and Christian factors. The change in the day of rest and worship was not merely a change of names or of numbers, but rather a change of meaning, authority and experience. Essentially it was a change from a Holy Day into a holiday.
From Sabbath to Sunday has the distinction of being the first book written by a non-Catholic ever to be published by a Pontifical press with the Catholic imprimatur (approval). The book has already been reprinted fourteen times in English and has been translated in several other languages. Hundreds of scholars of different persuasions have praised this book as a definitive treatment of the early history of the Lords Day. I received a gold medal from Pope Paul VI for earning the academic distinction of summa cum laude in my research and school work at the Pontifical Gregorian University, in Rome, Italy.
My background is rather unique. I was born and brought up in Rome, Italy, a stone-throw from the Vatican wall. For my college education I went to England where he earned a B. A. degree in Theology at Newbold College. From England I came to America for my graduate studies and earned a M. A. and a B. D. degrees at Andrews University Theological Seminary. Upon completing my seminary training in 1964, I went with my wife, Anna, to Ethiopia where I served for five years as Bible and History teacher.
In 1969 I returned to my native city of Rome to study at the prestigious Pontifical Gregorian University, where I was the first non-Catholic to be admitted in over 450 years of its history. At the Gregoriana I spent the next five years working toward a Doctoratus in Church History. I was awarded a gold medal by Pope Paul VI for attaining the academic distinction of summa cum laude for my class-work and dissertation From Sabbath to Sunday.
After completing my doctorate in 1974, I was invited to teach at Andrews University, a Seventh-day Adventist institution located in Berrien Springs, Michigan. For the past 23 years I have served at Andrews University as Professor of Theology and Church History. To be able to pursue more fully my ministry of research into vital Biblical truths, for the past 26 years I have taught only only from January to May of each year. From June to December I am off-teaching so that I can dedicate myself fully to research timely Biblical truths. The result of this ministry has been the publication of 15 volumes which have helped thousands of people around the world to better understand and experience Biblical truths.