This thesis was laid out by Rabbi Isaac ben Samuel of Acre, a 13th century Kabbalist, who said that when calculating the age of the universe, one must use divine years rather than physical years.
This thesis was laid out by Rabbi Isaac ben Samuel of Acre. Acre was a 13th century Kabbalist. When calculating the age of the universe, one must use divine years rather than physical years. This was what a 13th century Kabbalist said.