The point Iam making is that the year 1933 and 34 is just as significant, if not more,as 1914. Especially if Witnesses consider that it was in World War 2 when Jehovah's Witnesses were extremely persecuted in Nazi camps.
The 1934 year has been proposed before - even going way, way back to Rutherford's day*.
If the new starting point was 587 BCE and the 7 times/2520 years were kept intact, it has to be 1934. If 586 BCE etc. (remember, 586 is the year after 587 in BCE years and there is no year 0†), it would be 1935.
All the JW prophetic interpretations tied to 1914 cannot be transposed onto those years, most significantly those to do with God's choosing of the Org. to be His special people - 'judgment of the house of God,' the killing and revival of the 'two witnesses,' appointment of the 'slave,' 'Babylonish captivity' in Atlanta State Penitentiary, spiritual cleansing, 'wheat and weeds,' etc., etc.
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* Watchtower 1922, May 1, 'The Gentile Times,' p. 133.
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† 587 BCE to 1 BCE = 586
1 CE to 1935 CE = 1934
586 + 1934 = 2520 years
586 BCE to 1 BCE = 585
1 CE to 1936 = 1935
585 + 1935 = 2520 years