An excellent presentation of secular archeology supporting Jerusalem's destruction in 607 B.C.E:
http://download.jw.org/files/media_magazines/wp_E_20111101.pdf
When Was Ancient Jerusalem Destroyed?
PART TWO: WHAT THE CLAY DOCUMENTS REALLY SHOW
Introduction:
The Bible says that the Jewish captives were to be exiled in Babylon “until the seventy years were completed in fulfillment of the word of the Lord spoken by Jeremiah.”
When were they released? In “the first [regnal] year of Cyrus king of Persia.” (2 Chronicles 36:21, 22, New International Version) Biblical and secular history agree that this exile in Babylon ended after Cyrus conquered Babylon and freed the Jews, who returned to Jerusalem in 537 B.C.E. Since the Bible explicitly says that the exile lasted for 70 years, it must have begun in 607 B.C.E.
However, most scholars date the destruction of Jerusalem at 587 B.C.E. This allows for only a 50-year exile. Why do they conclude that? They base their calculations on ancient cuneiform documents that provide details about Nebuchadnezzar II and his successors. Many of these documents were written by men who lived during or close to the time of Jerusalem’s destruction. But just how sound are the calculations that point to the date 587 B.C.E.? What do these documents really show?
To answer those questions, consider three types of documents that scholars often rely on: (1) The Babylonian chronicles, (2) business tablets, and (3) astronomical tablets.
Conclusion:
Why Trust the Bible?
At present, the majority of secular historians believe that Jerusalem was destroyed in 587 B.C.E. However, the Bible writers Jeremiah and Daniel clearly state that the Jews were in exile for 70 years, not 50 years. (Jeremiah 25:1, 2, 11; 29:10; Daniel 9:2) Those statements strongly indicate that Jerusalem was destroyed in 607 B.C.E. As the above evidence shows, that conclusion has some secular support.
Secular experts have repeatedly questioned the Bible’s accuracy. Yet, when more evidence is uncovered, the Bible record has time and again been vindicated. Those who trust the Bible have good reason to do so. They base their opinion on proof that the Bible is historically, scientifically, and prophetically accurate. That evidence leads them to believe the Bible’s claim that it is the inspired Word of God. (2 Timothy 3:16) Why not investigate the evidence for yourself ? You may well come to the same conclusion.