"The Age of Reason" by Thomas Paine is a deistic work published in three parts between 1794 and 1807. Paine challenges institutionalized religion and the Bible's legitimacy, arguing for reason over revelation and rejecting miracles as divine proof. He advocates for natural religion and belief in a creator god while criticizing what he saw as the Christian Church's corruption and political ambitions. Written in an engaging, irreverent style, Paine made deistic arguments accessible to ordinary readers, sparking both revival and fierce controversy across America and Britain.