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Rights and liberty

Protestants also took the initiative in advocating for religious freedom. Freedom of conscience had a high priority on the theological, philosophical, and political agendas since Luther refused to recant his beliefs before the Diet of the Holy Roman Empire at Worms (1521). In his view, faith was a free work of the Holy Spirit and could, therefore, not be forced on a person. The persecuted Anabaptists and Huguenots demanded freedom of conscience, and they practiced separation of church and state. In the early seventeenth century, Baptists like John Smyth and Thomas Helwys published tracts in defense of religious freedom. Their thinking influenced John Milton and John Locke 's stance on tolerance. Under the leadership of Baptist Roger Williams, Congregationalist Thomas Hooker, and Quaker William Penn, respectively, Rhode Island, Connecticut, and Pennsylvania combined democratic constitutions with freedom of religion. These colonies became safe havens for persecuted religious minorities, including Jews.

The United States Declaration of Independence, the United States Constitution, and the American Bill of Rights with its fundamental human rights made this tradition permanent by giving it a legal and political framework. The great majority of American Protestants, both clergy and laity, strongly supported the independence movement. All major Protestant churches were represented in the First and Second Continental Congresses. In the nineteenth and twentieth centuries, the American democracy became a model for numerous other countries and regions throughout the world (e.g., Latin America, Japan, and Germany). The strongest link between the American and French Revolutions was Marquis de Lafayette, an ardent supporter of the American constitutional principles. The French Declaration of the Rights of Man and of the Citizen was mainly based on Lafayette's draft of this document. The Declaration by United Nations and Universal Declaration of Human Rights also echo the American constitutional tradition.

Democracy, social-contract theory, separation of powers, religious freedom, separation of church and state—these achievements of the Reformation and early Protestantism were elaborated on and popularized by Age of Enlightenment thinkers. Some of the philosophers of the English, Scottish, German, and Swiss Enlightenment— Thomas Hobbes, John Locke, John Toland, David Hume, Gottfried Wilhelm Leibniz, Christian Wolff, Immanuel Kant, and Jean-Jacques Rousseau —had Protestant backgrounds. For example, John Locke, whose political thought was based on "a set of Protestant Christian assumptions", derived the equality of all humans, including the equality of the genders ("Adam and Eve"), from Genesis 1, 26–28. As all persons were created equally free, all governments needed "the consent of the governed ".

Also, other human rights were advocated for by some Protestants. For example, torture was abolished in Prussia in 1740, slavery in Britain in 1834 and in the United States in 1865 (William Wilberforce, Harriet Beecher Stowe, Abraham Lincoln —against Southern Protestants). Hugo Grotius and Samuel Pufendorf were among the first thinkers who made significant contributions to international law. The Geneva Convention, an important part of humanitarian international law, was largely the work of Henry Dunant, a reformed pietist. He also founded the Red Cross.