The earliest existentialists were the devout Christian [[Soren Kierkegaard]] and the vocal atheist [[Friedrich Nietzsche]]. The movement did not, however, develop its name or popularity until the 20th century when it was popularized by a number of thinkers—ranging from the atheist [[Jean Paul Sartre]] to the Jewish thinker Marten Buber. <ref>Stanford Encyclopedia of Philosophy[http://plato.stanford.edu/entries/existentialism/]</ref> | The earliest existentialists were the devout Christian [[Soren Kierkegaard]] and the vocal atheist [[Friedrich Nietzsche]]. The movement did not, however, develop its name or popularity until the 20th century when it was popularized by a number of thinkers—ranging from the atheist [[Jean Paul Sartre]] to the Jewish thinker Marten Buber. <ref>Stanford Encyclopedia of Philosophy[http://plato.stanford.edu/entries/existentialism/]</ref> |