+Protestantism is a major branch of [Christianity](/wiki/christianity) that emerged from the [Reformation](/wiki/reformation) in 16th-century Europe. It emphasizes salvation by grace through faith, the priesthood of all believers, and the Bible as the ultimate source of religious authority.
+## See also
+- [Catholicism](/wiki/catholicism)
+- [Martin Luther](/wiki/martin_luther)
+- [Theology](/wiki/theology)
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