I found this simple timeline book on history at Borders & Book on sale table: Investigate World History. authors: Anita Ganeri, Hazel Mary Martell, Brian Williams (Dempsey Parr Book Publishing). I had been conducting a Bible Study in the Knowledge Book and was on the chapter 10 God's Kingdom Rules, pg 96 #16 "Therefore, the destruction of Jerusalem by the Babylonians in 607 B.C.E> was very significant.." I had covered this section, never questioning the date being different from historical records and then on History Channel was a show about the History of God and they said Jerusalem was destroyed in 586 B.C.E., thinking that THEY WERE WRONG, I found this book I had purchased earlier and looked it up and sure enough the date of 586 B.C.E. was shown. I was shocked.
So started my research on WT CD, calling the society directly (told it was only a difference of 20 yrs and that using the Kings list from prior posts and reviewing WT literature the kings list does end up being 586 BCE, which I was told was because I was doing Traditional Math, Hello.......Oh and by they way he told me that I could write the Society for more information that they didnt publish but only gave to those who dug deeper but I had to write for it. Which again blew my mind what would God's food be on special order and disbursed to all.
Your wife will not find anything showing 607 BCE because it is only the WT that comes up with this date to force the 1919 being appointed as sole channel for Gods earthly organization. You can put in Destruction of First Temple Jerusalem in Search Engine and will get a lot of sites that are not apostate (per society). Especially going into Israel's official website will take you to this historical dates. Gee I would think they might know their own history, but no so according the WTS the whole world is wrong, even the publications they use as resources for 539 Pivotal Date for fall of Babylon will confirm the length of Kings to 586 fall of Jeruselm.
I have original book Babylonian Chronology 626 B.C.-AD.75 by Richard A. Parker and Waldo H. Dubberstein, 1956 - Brown University Press, which is quoted often in Insight Books and WT articles, which was given to me by elder JW to help me on research of 586 vs 607 and he supposed it would uphold 607because it was quoted for 539 date. It just shows that we accept what they print but often do not read what is referenced. It clearly supports 586 BCE!!!!!!!
Sorry for the long post, enjoy your research.
Peace
Sheri