What part did Zwingli Calvin Knox play in the spread of the protestant reformation throughout Europe?

Ulrich Zwingli, John Calvin, and John Knox were pivotal figures in the Protestant Reformation, each contributing to its spread across Europe. Zwingli led the Reformation in Switzerland, emphasizing Scripture and rejecting Catholic practices, which laid the groundwork for further reform. Calvin's establishment of a theocratic government in Geneva and his influential writings, particularly "Institutes of the Christian Religion," spread Reformed theology across Europe. Knox, as a leader of the Scottish Reformation, helped establish Presbyterianism and promote Protestant ideals in Scotland, thereby influencing the wider Reformation movement.