Your looking at this all wrong. Assyria put a curse on Babylon after they removed the people then destroyed the city. The king made the curse 70 years, this is documented. His son reversed the curse or changed it saying was for only 11 years so the city was rebuilt.
I can’t believe that this exact amount of years was a curse put on the levant or Jerusalem also as a curse. Either the idea was stolen or the writings were changed.