Maybe the Bible has the answer?
“The Jubilee is the year at the end of seven cycles of shmita (Sabbatical years) and, according to biblical regulations, had a special impact on the ownership and management of land in the Land of Israel.
According to the Book of Leviticus (Chapter 24-25), Hebrew slaves and prisoners would be freed, debts would be forgiven, and the mercies of God would be particularly manifest.”
SOURCES:
- https://en.m.wikipedia.org/wiki/Jubilee_(biblical)#:~:text=T....
- https://bibleproject.com/podcast/jubilee-radical-year-releas....