You know very well that our teachings are Bible -based because Bible texts are frequently cited in our literature and public preaching and teaching. The proof is in the pudding so to speak and cannot be denied.
I am not denying that JW beliefs are based on the bible, just as every other Christian religion bases their beliefs on the bible (and just as "Monty Python and the Holy Grail" is based on the legend of King Arthur). And just as other Christian religions deviate in places from what the bible says, so does yours.
And it's not "the proof is in the pudding" (which is meaningless), it's "the proof of the pudding is in the eating". Sheesh.
You ask for veriable dates so I provide FOUR dates : 607 BCE, 539 BCE, 537 BCE and 1914 CE. How good is that ?
You have provided four dates. I asked for verifiable dates. Of those, only 539 is verifiable, and it is established by secular historians (using methods rejected by the Watchtower Society), not by Watchtower doctrine and therefore does not fulfil the request. Since 2 of the remaining dates are dependant on the verifiabilty of 537 (in addition to other unverified claims), you need to provide proof that the Jews returned in 537 to support any claim of verifiability.
October in 1914 saw the world caught up in World War 1 which was the direct result of Satan;s expulsion to earth and the birth of the Kingdom. It is accepted therefore gu many thinkers that this changed the world forever and was the most significant year in modern history.
That is a woefully pitiful response. According to current JW dogma, Satan was expelled from heaven - and only then would "woe" commence - as the first part of Jesus' 'presence' which should have occurred during or after October, not before. (Though at the time they believed Armageddon would start then.) To reiterate, nothing at all happened "with great suddenness" (The Watchtower, 15 May 1911) in October of 1914. To claim that events prior to October of 1914 indicated the fulfilment invalidates the Society's claim that it was a precise number of years, and its ponderous chronology makes it impossible to move the starting point away from October. The fact that anything significant happened in the year 1914 is merely a coincidence, one that the WTS has had to doggedly cling to ever since.
I submit the following texts to prove that the seventy years was exilic: Jeremiah 25:11; 29:10 and the book of Lamentations for starters. Wanna play?
It has been demonstrated previously how and why the NWT rendition of Jeremiah 29:10 is invalid; other translations correctly indicate the connection of the 70 years "for" Babylon, in harmony with Jeremiah 25:11. Jeremiah 25:11 neither states nor implies anything at all about Jewish exile; verses 8-11 clearly indicate the context to apply to all of the nations in the entire region being in servitude to Babylon. The word "seventy" does not occur in the book of Lamentations. However, Lamentations 1:2 does indicate that although the people of Judah were exiled for an unstated period of time, which is not under contestation, it also states that they had to dwell among "the nations", debunking the JW claim that even Jews who fled to Egypt were taken back to Babylon.