United States
In the United States, The Age of Reason initially caused a deistic "revival". Paine became so reviled that he could still be maligned as a "filthy little atheist" by Theodore Roosevelt over one hundred years later.
At the end of the 18th century, America was ripe for Paine's arguments. Ethan Allen published the first American defense of deism, Reason, The Only Oracle of Man (1784), but deism remained primarily a philosophy of the educated elite. Men such as Benjamin Franklin and Thomas Jefferson espoused its tenets but at the same time argued that religion served the useful purpose of "social control." It was not until the publication of Paine's more entertaining and popular work that deism reached into the middling and lower classes in America. The public was receptive, in part, because they approved of the secular ideals of the French Revolution. The Age of Reason went through 17 editions and sold thousands of copies in the United States. Elihu Palmer, "a blind renegade minister" and Paine's most loyal follower in America, promoted deism throughout the country. Palmer published what became "the bible of American deism", The Principles of Nature, established deistic societies from Maine to Georgia, built Temples of Reason throughout the nation, and founded two deistic newspapers for which Paine eventually wrote seventeen essays. Foner wrote, "The Age of Reason became the most popular deist work ever written ... Before Paine it had been possible to be both a Christian and a deist; now such a religious outlook became virtually untenable." Paine presented deism to the masses, and, as in Britain, educated elites feared the consequences of such material in the hands of so many. Their fear helped to drive the backlash which soon followed.
Almost immediately after this deistic upsurge, the Second Great Awakening began. George Spater explains that "the revulsion felt for Paine's Age of Reason and for other anti-religious thought was so great that a major counter-revolution had been set underway in America before the end of the eighteenth century." By 1796, every student at Harvard was given a copy of Watson's rebuttal of The Age of Reason. In 1815, Parson Weems, an early American novelist and moralist, published God's Revenge Against Adultery, in which one of the major characters "owed his early downfall to reading 'PAINE'S AGE OF REASON'". Paine's "libertine" text leads the young man to "bold slanders of the bible" even to the point that he "threw aside his father's good old family bible, and for a surer guide to pleasure took up the AGE OF REASON!"
Paine could not publish Part III of The Age of Reason in America until 1807 because of the deep antipathy against him. Hailed only a few years earlier as a hero of the American Revolution, Paine was now lambasted in the press and called "the scavenger of faction," a "lilly-livered sinical [sic] rogue," a "loathsome reptile," a "demi-human archbeast," "an object of disgust, of abhorrence, of absolute loathing to every decent man except the President of the United States [Thomas Jefferson]." In October 1805 John Adams wrote to his friend Benjamin Waterhouse, an American physician and scientist:
I am willing you should call this the Age of Frivolity as you do, and would not object if you had named it the Age of Folly, Vice, Frenzy, Brutality, Daemons, Buonaparte [sic], Tom Paine, or the Age of the Burning Brand from Bottomless Pit, or anything but the Age of Reason. I know not whether any man in the world has had more influence on its inhabitants or affairs for the last thirty years than Tom Paine. There can be no severer satyr [sic] on the age. For such a mongrel between pig and puppy, begotten by a wild boar on a bitch wolf, never before in any age of the world was suffered by the poltroonery of mankind, to run through such a career of mischief. Call it then the Age of Paine.
Adams viewed Paine's Age of Reason not as the embodiment of the Enlightenment but as a "betrayal" of it. Despite all of these attacks, Paine never wavered in his beliefs; when he was dying, a woman came to visit him, claiming that God had instructed her to save his soul. Paine dismissed her in the same tones that he had used in The Age of Reason: "pooh, pooh, it is not true. You were not sent with any such impertinent message ... Pshaw, He would not send such a foolish ugly old woman as you about with His message."
The Age of Reason was largely ignored after 1820, except by radical groups in Britain and freethinkers in America, such as Robert G. Ingersoll and the American abolitionist Moncure Daniel Conway, who edited his works and wrote the first biography of Paine, favorably reviewed by The New York Times. Not until the publication of Charles Darwin's The Origin of Species in 1859, and the large-scale abandonment of the literal reading of the Bible that it caused in Britain did many of Paine's ideas take hold. As writer Mark Twain said, "It took a brave man before the Civil War to confess he had read the Age of Reason ... I read it first when I was a cub pilot, read it with fear and hesitation, but marveling at its fearlessness and wonderful power." Paine's criticisms of the church, the monarchy, and the aristocracy appear most clearly in Twain's A Connecticut Yankee in King Arthur's Court (1889).
Paine's text is still published today, one of the few 18th-century religious texts to be widely available. Its message still resonates, evidenced by Christopher Hitchens, who stated that "if the rights of man are to be upheld in a dark time, we shall require an age of reason". His 2006 book on the Rights of Man ends with the claim that "in a time ... when both rights and reason are under several kinds of open and covert attack, the life and writing of Thomas Paine will always be part of the arsenal on which we shall need to depend."