It is interesting :: First records of preservation means such a condom date from Ancient Egypt, where condoms were made of animal skin. Nowadays there is a great variety of condoms, which differ in color, texture and smell.
If used properly :: condom is very effective because it reduces the risk of being infected with HIV during sexual intercourse. Using a condom also provides protection against other diseases, which are transmitted sexually and condom is also a good protection against pregnancy. The condom should unroll smoothly and easily from the rim on the outside. If it takes more than a few seconds, it probably means that you are trying to put the condom on upside down. To take off the condom, don't try to roll it back up. Hold it near the rim and slide it off. You need to use a new condom every time you have sexual intercourse. You should never use the same condom twice. If you go from anal intercourse to vaginal intercourse, you should consider changing the condom.
In one Austrian museum :: among 250 historical exhibits related to sex, the most ancient condom was displayed. This condom which was made for multiply use, was found in Sweden. The boon dates back to 1640. The condom remained untouched, and it comes with instructions written in Latin. According to the instructions, the condom has to be dip into milk before using in order to avoid infections. By the way, in ancient times the dominating practice against lues was applying of animal fats or oil on genitals. At the heart of the practice was the idea that the disease penetrates through pores: thus they should be covered with oil or fat. Gentlemen used to take gold or silver boxes with animal fat when they dated with ladies.