SBF,
Indiviuals in the early church made mistakes, for example some stated that the ressurection had already ocurred. But since the church was not hiearchial in nature, those problems were easy to deal with.
Yes they did say the dates came from Jehovah. Each issue of the awake said something to the effect that "it is JEHOVAHS will for the end to come before the end of this generation"
Look at these quotes and tell me that they didnt claim the 1975 prophecy wasnt from Jehovah
*** w67 7/15 pp. 446-447 The Removal of Mankind?s Chief Disturber ***
The last thousand years of God?s great seven-thousand-year rest is a special sabbath over which the Son of man will be Lord.?Matt. 12:8.
*** w68 8/15 p. 488 The Book of Truthful Historical Dates ***
In reality he has at his disposal the most ancient book of history and, more important, one that can be trusted and depended upon as the supreme authority, one by which all other testimony can be measured and judged. Fortunately, this historical document is now translated in the language the inquirer can read. This book is the Holy Bible, the inspired and sacred Word of Jehovah God. Jehovah alone knows both the end and the beginning.
*** w74 12/15 pp. 764-765 Benefits and Rewards from Being Spiritually Secure ***
And now, as the critical year of 1975 enters, it may well be asked: Has the Most High God of prophecy made a name for himself? The answer is self-evident, Yes! By whom? Not by Christendom or by Jewry, but by Jehovah?s Christian witnesses!
How fitting it would be for God, following this pattern, to end man's misery after six thousand years of human rule and follow it with His glorious Kingdom rule for a thousand years! .. only seven more years from the autumn of 1968 to complete 6,000 full years of human history. That seven-year period will evidently finish in the autumn of the year 1975.. {AWAK Oct 8 1968 14-5}
we are reaching what Jehovah God could view as the seventh day of man's existence. How appropriate it would be for Jehovah God to make of this coming seventh period of a thousand years a sabbath period of rest and release, a great Jubilee sabbath for the proclaiming of liberty throughout the earth to all its inhabitants! This would be most timely for mankind. It would also be most fitting on God's part, for, remember, mankind has yet ahead of it what the last book of the Holy Bible speaks of as the reign of Jesus Christ over earth for a thousand years, the millennial reign of Christ. Prophetically Jesus Christ, when on earth nineteen centuries ago, said concerning himself: "For Lord of the sabbath is what the Son of man is." (Matthew 12: 8). It would not be by mere chance or accident but would be according to the loving purpose of Jehovah God for the reign of Jesus Christ, the 'Lord of the Sabbath,' to run parallel with the seventh millennium of man's existence." {LEIF 26-30}