Martin Luther, John Calvin, and Henry VIII all
played a key role in the
(1) attempts made to reclaim the Holy Land
(2) fall of the Ottoman Empire
(3) end of religious unity in Europe
(4) establishment of parliamentary democracy in
Britain
Martin Luther, John Calvin, and Henry VIII all played a key role in the "(3) end of religious unity in Europe", especially Matin Luther, who ushered in the Protestant movement.
