 After this , the use of penis <unk> to protect from disease is described in a wide variety of literature throughout Europe . The first indication that these devices were used for birth control , rather than disease prevention , is the 1605 theological publication De <unk> et <unk> ( On justice and law ) by Catholic theologian <unk> <unk> , who condemned them as immoral . In 1666 , the English Birth <unk> Commission attributed a recent downward fertility rate to use of " <unk> " , the first documented use of that word ( or any similar spelling ) . 
