jwposter:
So this tells you that 1 Kings 6:1 where it mentions the 480 years is not from the Beginning of the Exodus but from the End of the Exodus. We know this because the dedication of the Temple is in the 60th Jubilee. ... Now since the Temple was dedicated in 950 BC, we can see that the 50th Jubilee was 490 years earlier in 1440 BC (crossing of the Jordan).
The temple reportedly took 7 years to build, so this word salad about the temple being dedicated 490 years after the end of the exodus (which is wrong anyway) would mean either that the 480 years ended 3 years before the end of the exodus, or that the temple was completed 487 years after the exodus ended.
Still waiting for those details about Praesepe...