<Li> Genesis is a post-exilic work combining "Priestly" and "non-Priestly" material . </Li> <Li> Exodus is an anthology drawn from nearly all periods of Israel's history . </Li> <Li> Leviticus is entirely Priestly and dates from the exilic / post-exilic period . </Li> <Li> Numbers is a Priestly redaction (i.e., editing) of a Yahwistic / non-Priestly original . </Li>

When was the earliest book of the bible written