How did zwingi Calvin and King Henry VIII contribute to the growth of protestantism?

Ulrich Zwingli, John Calvin, and King Henry VIII significantly advanced Protestantism through their distinct reforms. Zwingli emphasized a return to Scripture and rejected practices he deemed unbiblical, influencing the Reformed tradition. Calvin further developed Protestant theology with his emphasis on predestination and the sovereignty of God, establishing a robust framework that shaped many Protestant denominations. Meanwhile, Henry VIII's break from the Catholic Church, motivated by personal and political reasons, led to the establishment of the Church of England, facilitating the spread of Protestant ideals in England.