A Letter Concerning Toleration by John Locke was originally published in 1689. Its initial publication was in Latin, though it was immediately translated into other languages. Locke's work appeared amidst a fear that Catholicism might be taking over England, and responds to t***he problem of religion and government*** by proposing religious toleration as the answer. This "letter" is addressed to an anonymous "Honored Sir": this was actually Locke's close friendPhilipp van Limborch, who published it without Locke's knowledge.