The expected events for 1975 would be delayed by the "interval of time" between Adam and Eve's creation as the start of the "Seventh Creative Day" did not begin until after Eve was created.
That's exactly what a circuit overseer told me in 1957--nine years before the Society began the 1975 teaching. I was a young teenager, and I asked the CO about the 6,000 years and if we added that to Adam's creation in 4026 B.C., wouldn't that bring us to 1975? If that guy had the "correct" understanding back in 1957, how come Freddy didn't figure it out untl 1975? And Freddy was "annointed!"
Bonnie