Final answer:
The Death of God movement echoes the philosophy of Friedrich Nietzsche, who pronounced 'God is dead' and influenced secular and atheistic thought, especially after the world wars.
Step-by-step explanation:
The Death of God movement took up the cry of the 19th-century philosopher Friedrich Nietzsche. Nietzsche's works and his declaration that "God is dead" had a profound impact on atheistic philosophies that gained significant traction in the Western intellectual history. His contemplations on nihilism and secular thinking influenced various artists, intellectuals, and existentialist thinkers throughout the 19th and 20th centuries. Nietzsche’s perspectives particularly resonated during and after the shocking experiences of World War I and World War II, which further fueled skepticism towards religious beliefs.