While in captivity, Babylon was captured by Cyrus of Persia.
2 Chronicles 36:20
... the Persians came to power.
2 Chronicles 36:23
Thus says Cyrus, king of Persia: "All the kingdoms of
the earth the Lord, the God of heaven, has given to
me, and he has also charged me to build him a house
in Jerusalem, which is in Judah. Whoever, therefore,
among you belongs to any part of his people, let him
go up, and may his God be with him!"