By Fr. Kevin Drew, Catholic Exchange - Christians are indistinguishable from other men either by nationality, language, or customs. They do not inhabit separate cities of their own, or speak a strange dialect, or follow some outlandish way of life... That is from the Letter to Diognetus, written around 130–180 AD. It is one of the earliest apologias (defenses) of Christianity at a time when Christians were a very small minority in the Empire. The author wrote that the Christians’ manner of dress, food, and way of life in general followed the custom of whatever city in which they lived. And yet he noticed something extraordinary about them ...