He was installed as bishop in Salamis on Cyprus in 367. He was versed in several languages including Hebrew, Syriac, Egyptian, Greek and Latin.
His most well-known book is Panarion which means "Medicine-chest" (also known as Adversus Haereses), a handbook for dealing with heretics, listing 80 heretic doctrines, some of which he may have invented himself just to get the opportunity to oppose them. This book was only recently (1987) translated into English.
wikipedia.org dumped 2003-03-17 with terodump