Year 97 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Lentulus and Crassus (or, less frequently, year 657 Ab urbe condita). The denomination 97 BC for this year has been used since the early medieval period, when the Anno Dominicalendar era became the prevalent method in Europe for naming years.
According to Christianity, the birth of Saint Joseph, the husband of Saint Mary the mother of Jesus, and his "earthly-father" - in distinction to God the Father, his "heavenly father." According to this account, Joseph was 92 years old when Jesus was born.