Oh well... According to the "excellent" study by Applegate, Jerusalem was destroyed in 587 BCE.
Interestingly, the "liberal" bias in Applegate's study is not accepted by leading and celebrated experts on the book of Jeremiah: Both J. Lundbom and G. Fischer make the point that the seventy years "for Babylon" (Jeremia 25 & 29) should not be equated with the time of the exile (which probably lasted ca. 49 years and ended after the end of the seventy years "for Babylon" in 539 BCE, as "predicted" by Jeremiah 29:10, NWT [in Danish and Swedish]).
-- Augustin --