The monotheistic Hebrew Bible measures time in human generations because human ... But most Jews would be hard pressed to explain what happened 5,783 years ago to start the Jewish Biblical calendar.

Starting May 14th, Jewish people around the world celebrate one of the most significant holidays in the Biblical calendar: Shavuot, or the Feast of Weeks, known to some Christians as “Pentecost.” ...

Professor Meyer said: "According to the ancient Hebrew calendar, the year isn’t 2020 AD but rather 5780, meaning 5,780 years have passed since the God of the Bible created the heavens and the Earth.