The Last Jubilee in the Prophecy given from Rabbi Judah ben Samuel in 1217 runs from the city of Jerusalem coming back under Jewish control to the making of a fateful contract/compact/ ... 1967 to 2017.
The last official Jubilee was when Tribes dwelt according to their territory, probably around the First Exile. Maimonides’ calculations would indicate the last Jubilee would have been celebrated 2004/5.
Christianity, being a different religion, can calculate it however it wishes, although such would have no impact on Jewish practice.