Year Zero - Christmas One

The book satisfies some curiosities about our calendar and some events that marked the beginning of year counting. Does our calendar, known as the Gregorian calendar, have a year zero? In December of year zero, how old was Christ? And had Herod already died before year zero, as some historians claim? How can we prove that our calendar is correct?

The book confirms the validity of the current calendar based on an unprecedented chronological research conducted in 2016 when it was possible to d...